" Keeps Gettin ' Better " was released as a single from the album and was released on September 22 , 2008 . An accompanying video saw Aguilera as Catwoman and performing in front of green screens . The single experienced moderate commercial success , peaking at number seven on the US '' Billboard '' Hot 100 and number four on the Canadian Hot 100 . On September 7 , 2008 , Aguilera performed a medley of " Genie 2.0 " and " Keeps Gettin ' Better " at the 2008 MTV Video Music Awards in Hollywood . On November 23 , Aguilera opened the American Music Awards of 2008 with a seven-minute medley of her previous singles , which included " Beautiful " , " Keeps Gettin ' Better " , " Genie in a Bottle " , " Dirrty " , " Ai n't No Other Man " , and " Fighter "
2008 MTV Video Music Awards
2008 MTV Video Music Awards
Keeps Gettin' Better: A Decade of Hits