On June 10, 2014, the HRSMN supergroup released their Historic EP. RBX is invited on the song Impossible. This formation includes Canibus, Ras Kass, Killah Priest and Kurupt. Le 10 juin 2014, le supergroupe HRSMN sortait leur Historic EP. RBX est invité sur la chanson Impossible. Cette formation comprend Canibus, Ras Kass, Killah Priest et Kurupt.