We've already explored "swaggy adult" Justin Bieber’s insistent flirtation with rapping, and while it's likely that he'll drop some new verses on his upcoming album, Believe, Bieber will also solicit help from some of rap's biggest stars. Bieber tweeted the LP's tracklist last night, revealing album appearances by Nicki Minaj, Ludacris and Big Sean, and confirming a previously promised collaboration with Drake. Last year it was reported that Kanye West would also be working on the album, but for now, it seems West won't appear on the final product. Due out June 19th, Believe is now said to feature production by Hit-Boy and Diplo.
