Who is KSI? One of the U.K.’s best-known YouTubers is also a boxer, rapper and author

KSI is a British YouTuber taking over social media. He’s actually a bit of a renaissance man. 

The internet personality is a gamer, rapper, author and boxer. He has duked it out with Logan Paul, collaborated with Lil Wayne and has amassed millions of subscribers. Here’s everything you need to know about the vlogger with many hats. 

Who is KSI? 

Born Olajide Olayinka Williams Olatunji on June 19, 1993 in Hertfordshire, U.K., he is currently 28 years old. 

In 2009, he started his YouTube career under the moniker KSI, which stands for “Knowledge Strength Integrity.” His main YouTube channel began as a vlog and gaming account but now features his music. It has over 23.3 million subscribers. His second channel, dedicated to vlogs, has 13.7 million subscribers.  

KSI dropped out of high school to pursue YouTube full-time after he was named the fifth-most subscribed user on YouTube in 2013. He is a member of the British YouTube group the Sidemen. 

Boxing Career

In 2018, KSI began amateur boxing. He fought YouTuber Joe Weller in a boxing match, following the pair’s ongoing beef. He won the fight and later faced off against Logan Paul that year. The fight garnered 2.25 million live YouTube viewers and resulted in a majority draw. He fought Paul again in 2019 and was declared the winner after six rounds. 

Music Career 

While KSI’s rap career first began with parody songs for his YouTube channel in 2011, in 2015 he began to take music seriously. That year, his single “Lamborghini” reached No. 30 on the UK Singles Chart. In 2017, he signed with RBC Records and released the studio album Dissimulation which debuted at No. 2 on the UK Albums Chart. 

On July 16, he released his second studio album All Over The Place. The song had tracks with features by Craig David, Digital Farm Animals, Future, 21 Savage and Lil Wayne. 

Acting and Writing Career

In 2014, KSI appeared in the YouTube comedy web series 5-A-Side. He starred in the British film Laid in America in 2016. He was also the subject of the 2018 documentary film KSI: Can’t Lose about his fight against Weller. 

KSI released three books — KSI: I Am a Bellend and I Am a Tool: How to be a YouTube Kingpin and Dominate the Internet in 2015 and Sidemen: The Book in 2016. 

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