WATCH: Christina Aguilera Impersonates Cher, Britney Spears on “The Tonight Show”

Christina Aguilera doesn't just have "The Voice"-- she has the voices!

The singer stopped by the "The Tonight Show" Monday and played "Wheel of Musical Impressions" with host Jimmy Fallon. They took turns pushing a button, activating a generator that randomly selected a musician and a song title.

Aguilera kicked things off by doing an impression of Cher singing the Folgers Coffee jingle. Spending time with the music legend on the set of Burlesque must have paid off, because the singer nailed the number.

For Fallon's first turn, he sang "Grand Old Flag" as David Bowie.

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Aguilera howled with laughter when the generator revealed that she had to sing "Miss Little Piggy" as Britney Spears, her former Mickey Mouse Club co-star. In the vein of "...Baby One More Time," Aguilera channeled her pop peer perfectly.

Fallon gave the "Genie in a Bottle" singer a standing ovation. "Oh, my God! That is something I've always wanted! That is amazing. I loved that so much!" Fallon said.

For the final round, Aguilera sang the "Golden Girls" theme song as Shakira. "I go to sleep to that song every night. Oh, my god. I love that song," she said before singing in the vein of "Whenever, Wherever."

Fallon joined Aguilera midway through, reprising his McDonald impression.

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During the episode, Aguilera also dished on her return to "The Voice."

"Every time I come back it gets easier and easier because they've got the routine down...It's a good time," Aguilera said. "I just sit there and laugh all day and listen to their potty humor and dirty jokes. Thank God I can roll with it. It's like having two grown babies as well."

(E! and NBC are both members of the NBCUniversal family.)

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