On November 23 , 2008 , while supporting her compilation album '' Keeps Gettin ' Better : A Decade of Hits '' , Aguilera performed a medley of her six hits , including " Ai n't No Other Man " , at the American Music Awards of 2008 held at Nokia Theatre in Los Angeles , California . On May 5 , 2010 , while promoting her sixth studio album , '' Bionic '' , Aguilera performed all of her hits on '' VH1 Storytellers '' , including " Ai n't No Other Man " . On October 24 , 2010 , Aguilera was invited to the '' Justin Timberlake & Friends '' benefit show at Las Vegas . There , she performed " Beautiful " , " Fighter " and " Ai n't No Other Man " . At the show beginning , Timberlake declared that Aguilera is " the best vocalist of my generation " , " no contest "
American Music Awards of 2008
American Music Awards of 2008
Ain't No Other Man