Later in the summer of 2003, Boosie collaborated with Webbie on the album Ghetto Stories, presented by Pimp C. In 2004, the duo worked together again on Trill Azz Mixtape Vol. 1, which also featured an appearance of Torrence "Bad Azz". In the same year, he released Trill Azz Mixes II which introduced Phat, later known as Lil Phat. He paired up again with Webbie, to release their second compilation album, Gangsta Musik. He caught the eye of some Universal Music Group representatives. In 2004 Lil Boosie and South Coast Coalition released Both Sides of the Track. Boosie also released a compilation mixtape title Bad Ass with a few new tracks like Trill Shit. It also featured the track I Smoke, I Drank by Body Head Bangerz featuring Boosie and Young Bleed off their debut album Body Head Bangerz: Volume One. January 1, 2005 Boosie teamed up with Lava House Records to release United We Stand, Divided We Fall. He also released Street Code with Pat Lowrenzo. In 2005, Lil Boosie released Bad Ass (Advance) to promote Bad Azz. In late January 2005, Boosie signed a deal with Warner Bros. Records.