KSI — Creator, boxer and Prime co-founder
Elite

KSI

Creator, boxer and Prime co-founder

Human
Verified
United Kingdom
English

Olajide Olayinka Williams "JJ" Olatunji, known professionally as KSI, is a British influencer, musician, and former professional boxer. He is a co-founder and former member of YouTube group the Sidemen, the co-founder of Misfits Boxing and co-owner of several businesses, including Prime Hydration and Lunchly. KSI has also served as a judge on Britain's Got Talent since 2025.

Total reach
54.3M
Known for
Creator, boxer and Prime co-founder
ksi

YouTube subscribers: 19.2M (19,200,000)

KSI follower count by platform

Latest recorded followers, subscribers and engagement on each platform.

YouTube
@ksi

19.2M

as of Sep 28, 2026

Subscribers

+100K
Instagram
@ksi

13M

as of Sep 21, 2026

Followers

-1
TikTok
@ksi

12.1M

as of Sep 21, 2026

Followers

+3.1M

10M

as of Sep 16, 2026

Followers

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Member data

The details agencies ask for first

KSI's contact route, audience split and rate estimates are ready — members see them in one tap.

  • Contact email for brand deals
  • Audience age and gender split
  • Engagement rate per platform
  • Estimated rate per sponsored post

About KSI

Who is KSI? Background, country and claim to fame

Olajide Olayinka Williams "JJ" Olatunji, known professionally as KSI, is a British influencer, musician, and former professional boxer. He is a co-founder and former member of YouTube group the Sidemen, the co-founder of Misfits Boxing and co-owner of several businesses, including Prime Hydration and Lunchly. KSI has also served as a judge on Britain's Got Talent since 2025. Based in UK, KSI is best known as creator, boxer and prime co-founder, with a combined following of roughly 56M across 4 tracked platforms.

KSI: audience split and what they are known for

Olajide Olayinka Williams "JJ" Olatunji, known professionally as KSI, is a British influencer, musician, and former professional boxer. He is a co-founder and former member of YouTube group the Sidemen, the co-founder of Misfits Boxing and co-owner of several businesses, including Prime Hydration and Lunchly. KSI has also served as a judge on Britain's Got Talent since 2025. United Kingdom; languages English. YouTube @ksi had 19,200,000 subscribers on 28 Sep 2026. Instagram @ksi had 12,964,234 followers on 21 Sep 2026. TikTok @ksi had 12,100,000 followers on 21 Sep 2026. X @KSI had 10,000,000 followers on 16 Sep 2026. Together the tracked networks come to 54,264,234. The same readings are on the KSI profile.

NetworkAudienceLast checked
YouTube (@ksi)19,200,000 subscribers28 Sep 2026
Instagram (@ksi)12,964,234 followers21 Sep 2026
TikTok (@ksi)12,100,000 followers21 Sep 2026
X (@KSI)10,000,000 followers16 Sep 2026

How KSI got famous

KSI built an audience by posting consistently in the gaming space and turning one format into a habit for fans. Youtube is the biggest home for that audience today at about 24M followers, and growth on the other platforms followed the same content being cut for each feed. Exact milestone dates vary between sources, so treat the timeline here as an outline rather than an official record.

What KSI posts

Expect gaming and music content: the recurring formats that made the channel recognisable, collaborations with other creators in the same niche, and short-form cuts made for TikTok, Reels and Shorts. Posting in English keeps the core audience in UK, while subtitles and visual formats pull in viewers worldwide.

KSI brands, business and partnerships

Like most creators at this scale, KSI earns through platform revenue, sponsorships and brand partnerships, with merchandise or own-brand products layered on top. Public deal terms are rarely disclosed, so we list only ventures that have been reported publicly and avoid guessing at contract values.

KSI net worth in 2026

Published net-worth figures for KSI come from third-party estimate sites, not audited accounts, and they disagree with each other by a wide margin. What can be said with confidence is that a following of about 56M supports meaningful income from Youtube alone, before brand work and business ventures. We do not publish a single number we cannot source.

Films, TV and signature work

KSI starred in the comedy film Laid in America (2016) and the documentary KSI: In Real Life (2023). His studio albums include Dissimulation (2020) and All Over the Place (2021), alongside YouTube content spanning gaming, comedy and challenges.

Where to watch

Watch his videos on his YouTube channels and KSI: In Real Life on Prime Video; listen to his music on Spotify and Apple Music. Availability varies by country.

Awards and milestones

His album All Over the Place debuted at No. 1 on the UK Albums Chart in 2021. He has also earned YouTube’s Diamond Creator Award for surpassing 10 million subscribers.

How big is KSI's audience?

KSI has 54.3M followers in total, which puts this profile in the elite band (over 10m followers). The largest single audience is on YouTube with 19.2M subscribers — about 35% of the total reach.

Instagram is the second home with 13M, so the audience is spread across more than one platform. That matters for planning: the same message can be repeated in different formats without hitting the same people every time.

What 54.3M combined followers actually means

Combined reach is the sum of followers and subscribers per platform. It is not unique people: audiences overlap, so treat it as a size indicator for shortlisting rather than a guaranteed audience.

Related questions

How many followers does KSI have in 2026?
KSI has around 54.3M followers in total across 4 tracked platforms in 2026: 19.2M on YouTube, 13M on Instagram, 12.1M on TikTok, 10M on X. Counts are public platform figures and shift daily, so treat them as close approximations.
Is KSI gaining or losing followers?
A reliable answer needs several comparable monthly checks across the same platforms. CreatorFanBase does not yet have enough monthly history to label KSI's audience as rising or falling, so the current verified platform totals are shown without inventing a short-term trend.
Which platform is KSI biggest on?
YouTube, with about 19.2M subscribers — roughly 35% of a 54.3M total following. That places KSI in the Elite band (Over 10M followers).

KSI's followers by platform

Here is where KSI's audience actually sits, platform by platform, using the latest count we recorded on each one (last checked Sep 28, 2026).

Every handle above links to the official account, so you can open it and check the numbers yourself before you reach out.

KSI follower count by platform (last checked Sep 28, 2026)
PlatformFollowers / subscribersShare of reachOfficial handle
YouTube19.2M subscribers35%@ksi
Instagram13M followers24%@ksi
TikTok12.1M followers22%@ksi
X10M followers18%@KSI

Official handles and live links

Every handle on this page links to the official account. If you are verifying KSI before a deal, open the profiles directly rather than trusting screenshots — the live number is always one click away.

Related questions

How many subscribers does KSI have on YouTube?
KSI has about 19.2M subscribers on YouTube as of the latest recorded check, which is roughly 35% of KSI's total 54.3M following. The handle links on this page go straight to the live profile so you can confirm the number yourself.
How many followers does KSI have on Instagram?
KSI has about 13M followers on Instagram as of the latest recorded check, which is roughly 24% of KSI's total 54.3M following. The handle links on this page go straight to the live profile so you can confirm the number yourself.
How many followers does KSI have on TikTok?
KSI has about 12.1M followers on TikTok as of the latest recorded check, which is roughly 22% of KSI's total 54.3M following. The handle links on this page go straight to the live profile so you can confirm the number yourself.
How many followers does KSI have on X?
KSI has about 10M followers on X as of the latest recorded check, which is roughly 18% of KSI's total 54.3M following. The handle links on this page go straight to the live profile so you can confirm the number yourself.
What are KSI's official social media handles?
ksi on TikTok, ksi on YouTube, KSI on X, ksi on Instagram. Every handle here links to the live profile, so anything not listed on this page is not a handle we have been able to confirm for KSI.

Who follows KSI?

KSI is based in United Kingdom and posts in English. For brands that usually means the core audience follows the same market and language, with a long tail from everywhere else — big accounts rarely stay local.

The content sits in music and gaming, so the people watching are self-selected for those interests. That is the useful part of a niche profile: a mid-size account inside the right category often beats a much larger general account, because the audience already cares about the subject.

If you need the same audience profile in another market, the country and language lists on CreatorFanBase let you line up comparable creators side by side instead of guessing.

Working with KSI

If you are shortlisting KSI for a campaign, these are the facts worth carrying into the brief. Everything here is stored data, refreshed on a schedule rather than typed in once.

A practical sequence: check the lead platform matches where your buyers are, check market and language, open the official account to see recent posting frequency, then ask for a media kit and rate card directly.

Lead platform for a brief
YouTube
Category fit
Music and Gaming
Budget signal
Elite audience (over 10m followers)

Related questions

Is KSI a good fit for a brand campaign?
KSI sits in the Elite band (Over 10M followers) in music and gaming with a United Kingdom-led audience. Smaller bands usually convert harder per follower while larger ones buy reach, so match the band to whether the goal is awareness or sales.
How can brands contact KSI?
Use the official handles linked on this page, and include the campaign scope, deliverables, timeline and budget in your first message.

How we verify KSI's numbers

KSI's counts come from the platforms themselves via YouTube official data, instagram public profile, tiktok public profile and Public platform profiles (approximate) and are refreshed on a schedule; the most recent check was Sep 28, 2026. When a platform blocks a read, we keep the last verified number and show where it came from instead of filling the gap with an estimate.

How often the numbers are refreshed

Large jumps are treated as suspect: a sudden drop past our safety threshold is held back for review rather than published, which is why the numbers here tend to be lower-drama than screenshots circulating elsewhere. Found something out of date? The profile links on this page go to the official accounts, so the live number is always one click away.

Related questions

Is KSI a real verified account?
Yes — KSI's profile on CreatorFanBase is checked against the live platform pages linked above, and follower numbers come from public platform data rather than self-reported claims. If a link ever breaks we drop the number instead of guessing.
When were KSI's follower numbers last updated?
The most recent recorded check was Sep 28, 2026. Counts are refreshed on a rolling schedule from public platform data, and a sudden unexplained drop is held back for review rather than published.

Is KSI gaining or losing followers?

Follower growth is best judged across several comparable monthly checks, not a few days of snapshots. CreatorFanBase does not yet have enough monthly history to call a reliable rise or fall for KSI; the current platform totals above remain the clearest view of audience size.

KSI's Fan Score

CFB Rating 9.4 out of 10, and what fans think.

Audience reach9.0 / 10
Platform presence9.5 / 10
Profile depth10.0 / 10

Fan score

—/5

No fan ratings yet — be the first

5★0
4★0
3★0
2★0
1★0

More about KSI

Other questions people ask about KSI.

When was KSI born, and how old is KSI?
KSI was born on Jun 19, 1993, which makes KSI 33 years old. KSI is from United Kingdom.
What is KSI best known for?
Creator, boxer and Prime co-founder. Main niches: Music, Gaming.
What language does KSI create in?
Mainly English. Language is a strong signal of where an audience sits, so it is worth checking before a campaign.
What is KSI's net worth?
Published net-worth figures for KSI come from third-party estimate sites, not audited accounts, and they disagree with each other by a wide margin. What can be said with confidence is that a following of about 56M supports meaningful income from Youtube alone, before brand work and business ventures…
Where is KSI based?
Public profiles place KSI in United Kingdom, posting mainly in English. We only publish the country a creator's own platforms and public reporting support, and we do not publish claims about ethnicity, religion or private address details.
How much does KSI earn per post?
There is no public rate card for KSI. Budget guidance on this page is $120K+. For accounts above 10 million followers we show a starting estimate instead of a range, because fees at that size are negotiated individually. KSI sets the real fee.
Who are creators similar to KSI?
CreatorFanBase lists comparable names in music, gaming and in United Kingdom, filterable by follower size, country and language. The related links on this page are the quickest route to the closest matches.

KSI sponsorship rate and cost per post

How much does it cost to hire KSI? A planning estimate for one sponsored post is $120K+ (estimate). Fees at this audience size are negotiated individually.

DeliverableEstimated cost
Story or short mention$42K+
Sponsored post, Reel or Short$120K+
Dedicated video or integration$220K+
Three-post campaign package$310K+

How to hire KSI

Send a free brief and CreatorFanBase checks availability, then negotiates the fee and terms with KSI for you.

Estimates use combined public follower counts. Up to 10 million followers, we show a planning range; above 10 million, we show an open-ended starting estimate because campaign scope drives the final fee.

Before you brief KSI

Agree deliverables in writing, check past brand work for conflicts, and agree how results are measured. Rates on this page are planning estimates from public follower counts, not quotes. Starter is $1 to search the full directory.

See plans·How counts are measured

Book KSI for your next campaign

We handle outreach, rate negotiation, contracts and content delivery with KSI and other creators for you — done-for-you.

Free to ask — no payment upfront. Booking is subject to the creator's availability and agreement, and rates are confirmed by the creator.

How to contact KSI for a brand partnership

Official channels and links

Business email: most creators publish a business address in their profile bio or on their website. We only list contact details a creator has made public themselves, so where no public address exists, use a direct message on the platform above.

Open for collaboration requests

Request a collaboration with KSI

Share your brief once. We pass it on through the creator's public business channels.

Are you KSI or their manager? Claim this profile

Explore creators like KSI

Jump to the rankings, countries and platforms this profile belongs to.

Guides for campaigns like this

influencers like KSI: compare campaign candidates

Data & sources

How the numbers on this page are collected and what they mean.

Last updated
Sep 28, 2026
Where it comes from
YouTube official data · instagram public profile · tiktok public profile · Public platform profiles (approximate)
Accuracy
Follower counts are approximate public figures and net-worth figures are third-party estimates, not verified financials. Spotted an error? Send a correction.

References and further reading

People also ask

Straight answers to the questions people search for.

How many subscribers does KSI have?

Right now KSI is listed at about 54.3M followers and subscribers combined. YouTube leads the split. Quote the profile and the date together. A newer snapshot replaces this one on regular updates described on the methodology page.

How many YouTube subscribers does KSI have?

The YouTube line on this profile shows about 19.2M subscribers for KSI. That is the audience for a YouTube post, not the sum of every network. Check the date on the row before you quote it. More YouTube creators are on the YouTube page.

Does KSI post on Instagram?

KSI has about 13M Instagram followers stored on this profile, separate from the other networks. Use that row when the deliverable is a Instagram post. The combined total is a wider number. More Instagram profiles are on the Instagram page.

How much does KSI charge for a brand deal?

For planning, KSI sits at $120K+ for one sponsored post. For accounts above 10 million followers we show a starting estimate instead of a range, because fees at that size are negotiated individually. It uses the combined public follower count on this profile, with the YouTube rate band. Ask KSI for the current fee. The method is on the methodology page.

Is KSI verified?

Yes. The handles on this profile are marked verified, which means they were matched to KSI's public accounts. Use those links when you write so you reach the official channel. If a handle looks wrong, tell us on the contact page.

Which country is KSI from?

KSI is listed as United Kingdom. That is the country tag on this profile, and it is what the country lists use. Check a recent post if you need a specific city. A city is not stored separately. More creators tagged United Kingdom are on the country list.

What language does KSI post in?

KSI is tagged as English-speaking on this profile. Use that when the script or the voiceover has to be in English, then watch a recent post to confirm the mix. One tag can cover more than one language in the work. Other English creators can be filtered in search.

What does KSI post about?

Music is how KSI is grouped in the directory, with English as the language tag. Start there, then read a recent post before you decide the fit. The posts decide whether the label is enough. More people in that niche are on the Music category.

How do I reach KSI for a sponsored post?

Use the collaboration form on this profile to send KSI your campaign brief, or contact the official account directly. Include the deliverable, budget and timing; the CreatorFanBase team reaches out and negotiates the deal for you. Discovery plans are on pricing.

Who are influencers like KSI?

Other published creators near KSI are in the similar creators section on this page, above these questions. If you want a longer list in Music, use the Music category and keep the country if the market matters. The posts, not the label, decide the fit.

How recent is KSI's follower count?

The newest follower snapshot stored for KSI is 28 September 2026. Counts are updated regularly, and a missing new reading keeps the previous date rather than inventing one. Put that date next to the number if you quote it. The schedule is on the methodology page.

Is KSI a good fit for a music campaign in United Kingdom?

KSI is tagged Music, United Kingdom in the directory, so that is the audience a brand can start from. The tag is a filing label, not a sales result, so watch a recent post before you brief anyone. Then compare a few others with the same tag on the Music list.

Which platform is KSI biggest on?

YouTube is the largest stored audience on this profile, at about 19.2M. The combined total adds the other networks, so it is not the audience for a single post. Check the split before you brief a different platform. More YouTube creators are on the YouTube page.

How do I get KSI to promote my brand or a song launch?

You can ask. Send a brief from the collaboration form on this profile with the product, the deliverable and your dates, and the CreatorFanBase team reaches out to KSI and negotiates for you. Music audiences respond to song launches, live moments and lifestyle tie-ins, so pitch a format that matches recent posts. KSI decides whether to accept. See the managed option on pricing.

What is KSI's rate for a YouTube integration?

Our planning estimate for one sponsored post from KSI is $120K+. Stories usually cost less than a feed post or reel, and usage rights, exclusivity and extra posts raise the fee. It is an estimate, not a quote — KSI sets the real rate. The method is on the methodology page.

Which music creators in United Kingdom are similar to KSI?

KSI is one of the Music profiles in United Kingdom on CreatorFanBase. Open the Music category and filter by country, language and follower size to see others ranked by audience. Every filter and follower count stays open; names after the first 5 results need a plan.

How do I find music influencers in United Kingdom for a brand campaign?

Start in search with the Music category and United Kingdom as the country, then set a follower range that fits the budget. Shortlist a few names like KSI, compare their platform split, and send a brief — or let CFB Agency run outreach and negotiation for you.

Can KSI create English content for my brand?

KSI is tagged English on this profile, so a script in English is a natural starting point. Check a recent post to confirm the language mix before you brief. Other English-speaking creators can be filtered in search.

Who is KSI's manager or agent?

We do not publish private management contacts. Use the official links on this profile, or send a brief from the collaboration form and the CreatorFanBase team will reach KSI's team for you and negotiate the deal. Plans and the managed option are on pricing.

Where are KSI's official accounts?

The official accounts we have for KSI are the links on this profile, starting with YouTube. Use those when you write, and compare the handle with the channel you already know. Or send a brief from the profile and the CreatorFanBase team will reach out and negotiate for you. A wrong link can be flagged on the contact page.

How big is KSI's audience?

YouTube @ksi had 19,200,000 subscribers on 28 Sep 2026. Combined across tracked networks: 54,264,234. Olajide Olayinka Williams "JJ" Olatunji, known professionally as KSI, is a British influencer, musician, and former professional boxer. He is a co-founder and former member of YouTube group the Sidemen, the co-founder of Misfits Boxing and co-owner of several businesses, including Prime Hydration and Lunchly. KSI has also served as a judge on Britain's Got Talent since 2025. See KSI.

What is KSI known for?

Olajide Olayinka Williams "JJ" Olatunji, known professionally as KSI, is a British influencer, musician, and former professional boxer. He is a co-founder and former member of YouTube group the Sidemen, the co-founder of Misfits Boxing and co-owner of several businesses, including Prime Hydration and Lunchly. KSI has also served as a judge on Britain's Got Talent since 2025. United Kingdom; languages English. YouTube @ksi had 19,200,000 subscribers on 28 Sep 2026. The profile is KSI.

Which network is largest for KSI?

YouTube, with 19,200,000 subscribers on 28 Sep 2026 under @ksi. Combined total: 54,264,234. Compare them on KSI.

Where is KSI listed?

United Kingdom; languages English. YouTube @ksi had 19,200,000 subscribers on 28 Sep 2026. See KSI.