Listen: Lady Gaga and Christina Aguilera team for 'Do What U Want' Christina Aguilera, left, and Lady Gaga perform Gaga's "Do What U Want" on the Season 5 finale of "The Voice" last month. Trae Patton / Associated Press / December 17, 2013 By Mikael Wood January 2, 2014, 10:45 a.m.