There are two artists named ABN. (A.B.N. is not an official artist name for either). ABN from US: The long awaited union of the rappers Z-Ro and Trae; forming Assholes By Nature. It Is What It Is is a studio album from cousins Z-Ro & Trae. It includes 18 tracks including ‘Umm Umm’, ‘Who’s The Man’ and ‘S.O.S. (Slap On Sight)’. Although Z-Ro & Trae have worked together on several songs in the past few years, this is the first album together since 2003’s Resurrected when they still went by the name of Guerilla Maab.