what does ksi do

KSI is a multi-hyphenate creator: he’s a YouTuber, musician, entrepreneur, and (now-retired) crossover boxer who built a whole media brand out of his online persona.

Quick Scoop: What KSI Does

• YouTuber & entertainer
  • Started on YouTube in 2009 making funny FIFA gameplay videos and commentary.

* Expanded into vlogs, comedy skits, reaction content, and collabs with other creators.

* Co-founded the Sidemen, a hugely popular UK YouTube group that posts gaming videos, challenges, and real‑life content.

• Musician (rapper & pop/rap artist)
  • Began releasing rap/comedy tracks tied to his channel around 2011.

* Broke through with the single “Lamborghini” in 2015, then put out EPs and albums like _Keep Up_ and _Dissimulation_ that charted in the UK.

* Regularly releases singles, features on other artists’ tracks, and performs live at festivals and tours.

• Boxer (now retired)
  • Helped kick off the whole “YouTuber boxing” wave with fights against Joe Weller and Logan Paul, turning internet beefs into sold‑out events.

* Continued fighting under Misfits Boxing, a promotion he co-founded, before announcing in early 2026 that he was done with boxing and had turned down very lucrative offers (including a big-money Jake Paul bout).

• Businessman & brand co-founder
  • Co-owner and front‑face of Prime , the sports and energy drink brand he launched with Logan Paul; it’s sold worldwide and heavily marketed online and via sports sponsorships.

* Co‑founded **Lunchly** in 2024 with Logan Paul and MrBeast, a kids’ lunch kit brand that bundles Prime drinks and Feastables chocolate.

* Serves as president of **Baller League UK** , a six‑a‑side football league launched in 2024, and is involved in other ventures through Misfits Boxing and collaborations.

• Mainstream media personality
  • Appears on TV and streaming shows, interviews, and specials talking about his journey from YouTube to music and boxing.

* In 2025 he even guest‑judged on _Britain’s Got Talent_ , sitting in for regular judges during part of the season.

In One Line

He makes content, music, and businesses: KSI is essentially a digital-era entertainer who turned FIFA videos into a career spanning YouTube, rap, boxing, and consumer brands.

Information gathered from public forums or data available on the internet and portrayed here.