Jonathan Smith , also known as Lil Jon (born January 17 1971) is an American hip hop artist, music producer and actor. He is a former member of the group "Lil Jon & the East Side Boyz". He formed the group in 1997. Lil Jon is known for shouting the words: "OK!", "What?!", and "Yeah!". His main hit was "Turn Down for What" featuring on the track by DJ Snake. He writes a blog on NHL.com about the Atlanta Thrashers. He is a fan of the team.