Olajide Olayinka Williams "JJ" Olatunji, known professionally as KSI, is an English YouTuber and rapper. He is a co-founder and member of the British YouTube group known as the Sidemen. He is the CEO of Misfits Boxing and the co-owner of Prime Hydration energy drink, XIX Vodka and a restaurant chain known as Sides.
9Apps 4.9
