When Will Smith visited "The Graham Norton Show" in May to promote his film "After Earth," he had more than just an interview planned. The rapper-turned-actor brought out his former DJ, Jazzy Jeff, and former "Fresh Prince of Bel-Air" co-star, Alfonso Ribeiro, for an unforgettable performance. We wish it had been in the United States. We also wish we had seen it live, instead of hours later. Hey, MTV, make it happen.