LOS ANGELES – Justin Bieber tries now as a rapper. And for the teen star has even acquired a nickname: Shawty Mane. As the online service “contactmusic.com” reports, this alter ego as he raps on Chris Brown’s new track “Ladies Love Me.” The 17-year-old wants to play it seems the bad guys, because among other things, he stunned the words. “Baby, I am your doctor … I swear I could really rock you” Who wants to be convinced by Justin rap arts, must incidentally, just go to the Internet. There, the track is already freely available.