Christina Aguilera had more than one hot look last night. First she hit the red carpet before the American Music Awards in a gorgeous floor-length silvery gown.

During the five-minute show opener that Christina performed, she wore some skimpy outfits that show just how well she’s gotten back in shape post-pregnancy.

Then when the show was over, she switched to a head-to-toe black outfit which she wore to the Target and Christina Aguilera Celebration of A Night of Music after-party.