London singer-producer Jack Garratt held court on CONAN last night, blowing away the audience and Conan himself by playing his single "Worry" from his upcoming album PHASE, using no less than five instruments. The level of multi-tasking here, coupled with being filmed on live T.V. might have been unbearable for some, but Garratt was a pro, totally unfazed as he switched from piano, to drums, and guitar, while singing and managing his levels. He wrapped it up with a guitar solo before Conan walked over and started gushing. Watch the performance here, and see our interview with Jack at SXSW.