But where's X-Tina, Cee-Lo Green, and country cutie Blake Shelton?
Oh wait… that's right, Christina Aguilera and Adam Levine are NOT the best of buds!
While we would have rather seen all four Voice US judges perform on The Voice UK's EPIC finale show, Adam Levine and Maroon 5 mashed up recent hits Payphone and Moves Like Jagger for a delightfully ear splitting performance.
Let Adam serenade you with those insidious high-notes (above)!
Eh, got a little flat on the transition there, Adam? It happens to the best of 'em!
Tags: adam levine, blake shelton, cee lo green, christina aguilera, feud, finale, judge, judges, maroon 5, performance, the voice, the voice uk, uk