FUSE TV - Watch Christina Aguilera's Impressive Rihanna Impression

Christina Aguilera not only has pipes of her own, but apparently, she has the pipes of others, too. On The Ellen Degeneres Show, the singer imitated other impressive artists during a tense game of Head's Up.

Xtina's impressions weren't that hard to pin down, although she wasn't quite able to remember a Lady Gaga song. We're loving her version of Rihanna's "Work."