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18 December 2013, 12:56
The 'Venus' star teamed up with The Voice vocal coach Christina for the season finale.
Lady Gaga teamed up with Christina Aguilera for a duet at the live final of The Voice US this week.
After arriving to perform her single 'Do What U Want' on the show this Tuesday (17th December), Christina then emerged from behind a giant silver shell to join the star on stage.
The pair then performed while holding hands, and shared a chaise-longue during the middle eight section of the performance.
Lady Gaga returned with her new album 'ARTPOP' last month.