" Untouchable ". A broad range of artists contributed to the album, including Ashanti , T.I. , Snoop Dogg , Ludacris , Bone Thugs-N-Harmony , Papoose , Keyshia Cole , Chamillionaire , Lil' Scrappy , Big Syke , Young Buck , Outlawz , including a posthumous appearance by Yaki Kadafi, and