Legendary Hip-Hop duo Blackstar aka Talib Kweli and Mos Def (who will soon go by the name Yasiin Bey in 2012) performed on The Colbert Report, which is broadcasted on Comedy Central. The two performed their new single “Fix Up” as well as their classic track “Astronomy (8th Light)”. Mos also explained the reason for dropping the name that so many people around the world know him as.