Watch Christina Aguilera Imitate Britney Spears, Shakira on ‘Jimmy Fallon’

‘Tonight Show’ host takes on David Bowie, Michael McDonald in new round of ‘Musical Impressions’

Jimmy Fallon's ability to imitate musicians from across the pop spectrum has been a part of his arsenal since his Saturday Night Live days, but The Tonight Show host may have met his match Monday when he and Christina Aguilera went head to head in a game of "Wheel of Musical Impressions."

The bit got off to an auspicious start with Aguilera's rendition of the "Folgers Coffee" jingle in the style of Cher, and Fallon's performance of "Grand Old Flag" as David Bowie. But Aguilera stole the show next with a pristine impression of her former Nineties pop rival, Britney Spears, singing "This Little Piggy" as the Roots jammed out the melody of "…Baby One More Time."

The performance earned a standing ovation from Fallon, but Aguilera wasn't done yet. She closed out the segment singing a personal favorite, the Golden Girls theme song, in the style of Shakira, tossing in a few "lole lole" ad libs for good measure. Fallon even lent the pop star an assist, jumping in as Michael McDonald to bring the theme to a rousing, surreal close.

Aguilera also returned to her post as a judge on NBC's singing competition The Voice on Monday after taking several seasons off to record a new album and welcome her second child, a daughter born last summer. The singer also recently signed on for a multi-episode arc on ABC's Nashville, where she'll play a pop star who moves to Music City and tries to reinvent herself as a country singer.