Aziz Ansari Starts Beef With Justin Bieber

It's on. Actor/comedian Aziz Ansari has started a feud with Justin Bieber, saying the tween hearthrob stole a song he had been working on with TV on the Radio's Dave Sitek for his hip-hop alter-ego Raaaaaaaandy's debut mixtape. According to Raaaaaaaandy's allegations and a reenactment on FunnyorDie.com, the 16-year-old Bieber invited himself to the studio and smoked all of Raaaaaaaandy's marijuana before stealing the lyrics to 'Baby' and popping a cap in Raaaaaaaandy's knee.

Last week, the star of NBC's 'Parks and Recreation' and Sitek attacked hip-hop's elite, including Jay-Z, Ludacris, Kanye West and more in the song 'Aaaaaaaangry' after the rap superstars failed to deliver their "promised" verses for the duo's mixtape. To get the full story of Raaaaaaaandy's beef with Bieber, check out the NSFW video after the jump, and watch out for a cameo from both Sitek and Yeah Yeah Yeahs guitarist Nick Zinner, who laid down the riffs for the "original" 'Baby, Baby.'