Justin Bieber is apparently very serious about his "rap" career, so much so, that the youngster is planning on releasing a mixtape with Young Money member Lil' Twist. According to Twist, the teen heartthrob will take his flow to a full album.

"It's in the works," Twist revealed in an interview. "We got a few records done, and every time we talk, we actually talk about this mixtape." The mixtape will include the duo's take on already released songs, such as Travie McCoy's 'Billionaire,' which features singer, Bruno Mars. "That's how we're gonna do the majority of the mixtape, with other people's records and just me freestyling over it. And Justin's a rapper now, so he's gonna be goin' in," Twist said.

Bieber showcased his rap skills on a viral video in which he flows under the moniker Shawty Mack. Although the 16-year-old seemed to be playful about the whole thing, at this point, just about anything he touches turns to gold, so he's definitely not ruling out bringing Mack back out to play. "I thought it was fun, I like rapping," Bieber told MTV News. "Maybe in the future, Shawty Mane will come back."

Lil' Twist, on the other hand, just unleashed his own solo mixtape, 'Carte Blanche.' The video for the title track can be viewed below.

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