Nas is the latest rapper to record a track for Dr Dre's forthcoming studio album, Detox.The album, which will be Dr Dre's first new album release since 2001, will also feature Eminem, 50 Cent, R Kelly and possibly Busta Rhymes, Snoop Dogg, The Game and even Jay-Z.Speaking to Billboard about his collaboration, Nas said: I did a joint, I think it is crazy.Nas added that he wants to work with Dre on