Happy Birthday KSI! 5 things you should know about the YouTuber
The YouTube star turned 28 on June 19, 2021.
Olajide William “JJ” Olatunji, better known as KSI, is a UK-based YouTube personality, rapper and boxer. He is also a co-founder of the popular Sidemen collaboration group.
Here are some things you should know about KSI… .
