Who knew! Apparently Justin is a triple threat... But then, his fans already knew that! See what MTV has to say below:

Justin Bieber already showed fans his fledgling MC skills as Shawty Mane. Now the Biebs may be donning his rap cap again, according to Lil Twist. The Young Money rapper says he's working on a mixtape with the pop star.

via Justin Bieber Working On Mixtape With Lil Twist - Music, Celebrity, Artist News | MTV.

I just love this little guy!