Christina Aguilera joins Jimmy Fallon on the Tonight Show last night to promote NBC's 'The Voice,' where voice became the star.

Christina first tackles The Folgers theme song in the style of Cher which was great, Jimmy does David Bowie while singing 'Grand Ole Flag.'

Then magic happens. The Wheel of Musical Impressions lands invites Christina to perform 'This Little Piggy' in the style of Britney Spears.

Jimmy Fallon gives her a standing ovation. Yes, it's that good. Following Christina Jimmy must perform 'Itsy Bitsy Spider' in the style of Michael McDonald.

Finally Christina performs 'The Golden Girls Theme' in the style of Voice Coach, Shakira, which Jimmy cannot resist joining her.