UPDATE: Christina promises her new album will drop by the end of the year! Watch:
Christina Aguilera's voice is so undeniably her own, it's hard to imagine anyone else.
Aguilera loves to impersonate her fellow pop stars, and usually Britney Spears makes the cut, but Ellen spared Christina when she asked her to play a lightning round of impersonations.
During the appearance, Aguilera sat down to chat about The Voice, her kids and Hillary Clinton "staring at her bosoms," then belted out her best Whitney Houston voice along with some of her musical peers like Katy Perry, Lady Gaga and Rihanna.