Justin Bieber is really proud of his collaboration with singer Chris Brown. The teen heartthrob tweeted that Shawty Mane -- his MC name -- is back and rapping on "Ladies Love Me" from Chris Brown's new mixtape "Boy In Detention."
If you think it's weird to hear Bieber rapping, you should know it's not his first attempt. The pop star dubbed himself Shawty Mane in a video he posted on Twitter where he showed off his skills, and he rapped on Sean Kingston's song "Won't Stop."
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