1.9 billion total views
10.5 million total subscribers
As a teenager, Olajide "KSI" Olatunji played EA Sports' line of FIFA video games for hours on end in his parents' home. In 2009, he began uploading footage of himself playing and commentating to YouTube, under the username KSIOlajidebt: a combination of a Halo franchise clan, his first name, and "British Telecom."
After a year, "KSI" — as he became known — garnered 7,000 subscribers. Another year later, that number tripled. His boisterous, goofy nature captured fans around the world.
Youtube Embed:
http://www.youtube.com/embed/trTBrZlOrdw
Width: 800px
Height: 450px