Minutes before it was announced that Tessanne Chin would emerge the winner of The Voice, Pop innovator Lady Gaga graced the stage in aid of her #1 album 'ARTPOP', performing one of the album's number 'Do What U Want' with...you guessed it...Christina Aguilera.
Perhaps a duet no one saw coming, the two vocalist unite on stage hitting the necessary notes and squashing the alleged feud in the process. But was it any good? Peep the performance after the break...