+ Welcome to Alcatraz – Holocaust/Warcloud ft. Pro the Leader August 7, 2015August 7, 2015, Music, Chambermusik, Hip-Hop, Holocaust, Killa Beez, leak, pro the leader, Rap, single, Soundcloud, Thrice Great Records, warcloud, Welcome to Alcatraz, Wu-Tang, 0 First leak single from the upcoming Thrice Great/UMG release, Holocaust/Warcloud ft. Pro the Leader, “Back at Pro’s Lab” in...