Last night, Justin Bieber decided to step out and have some real laughs with his friends at Russell Simmons’ All Def Comedy Live…and he had his rumored boo Kendall Jenner on his side. Diddy’s son Quincy accompanied them as well. Funny man Tony Rock had the most fun with the crowd last night, even kicking a freestyle to prove he can rap to a very popular battle rapper who was sitting in the audience. Also spotted in VIP was Hollywood Exes cast member Shamika Lawrence, as well as Mayweather’s bae Bad Medina with her lady friends, All Star player Baron Davis, Lil Wayne’s manager Cortez Bryant, Love & Hip Hop Hollywood cast members Nia Riley and Sincere Show and more. Check out a few more pics from the night in the gallery. All Def Comedy Live continues this Wednesday at the Chinese Mann Theatre.