Justin Bieber turned into a rapper for Chris Brown”s upcoming album, ”New Boy in Detention”. Justin Bieber worked with Chris Brown on the track ”Next 2 You” and is set to feature on ”Ladies Love Me”.

Bieber appears as his alter-ego Shawty Mane, on the track and sings, “Baby I”m your doctor/ I could be your rocker/ swaggin” I”m not bargain”/ but I swear that I could rock ya”/ baby I”m not crazy/ I got swag like Patrick Swayze/ y”know them haters never phase me? that”s not how my momma raised me.”

The ”Baby” hitmaker took to twitter to inform his fans, “did a lil something on the upcoming @chrisbrown mixtape.. Ladies love me. then we got crazy on the @asherroth album. #shawtymane (sic)”.

Music video by Justin Bieber performing Somebody To Love Remix. (C) 2010 The Island Def Jam Music Group

ust in time for summer, here comes Justin Bieber with a heroic little video ditty for Jaden Smith’s Karate Kid remake.

For a while it looks like Jaden’s just going to sit there like a lump while the Biebs rocks the teenage world in a recording studio intercut with clips of the movie to add a little production value. But Jaden finally cuts loose with a few choice dance moves and nifty rap break.

And while some might insist that “Parents Just Don’t Understand,” we think Big Willy would totally be down with Jaden’s rap.

But let us know what you think. Are you going to see Karate Kid? And is Jaden any threat to his pop-rappin’ Fresh Prince poppa?

Music video by Sean Kingston and Justin Bieber performing The Making of Eenie Meenie.

They’re both chart toppers in their own right, and Justin Bieber and Sean Kingston have teamed up to put out one of this year’s catchiest tracks so far.

The “One Less Lonely Girl” pop star and the “Fire Burning” hitmaker both appear in the video for “Eenie Meenie” and it’s nothing short of spectacular. Kingston told press, “Shooting this video with Justin was awesome. When I met him two years ago, we just clicked, so it was only a matter of time before we got together in the studio.”

It sounds like the video shoot was not without the occasional craziness.

A food fight even started on set at one point when we were goofing around in between takes!

Music video by Justin Bieber performing Never Let You Go.