Miley Cyrus shows off her dance moves in 'Ew!' sketch with Jimmy Fallon

Ew! Miley Cyrus put on her best valley girl accent to join pal Jimmy Fallon for his famous "Ew!" sketch on The Tonight Show.

The Voice coach sported long brunette locks and a denim overall dress to play Becky Campbell, an "all-time BFF" of Sara (Fallon). Becky started off complaining about her family vacation to the Grand Canyon.

WATCH: 'The Voice' Premiere: Miley Cyrus Declares She's 'About to Win' With Soulful Contestant

"It's just a big dumb hole in the ground and it doesn't even have wifi!" Cyrus said.

"Ew! No wifi?!" Fallon screamed.

The two then created a funny back-to-school "Insta-Memes," making faces that went along with lines like "Dat Class Tho." The pair then Face Swapped before busting a move in their basement.

They were interrupted by Sara's stepdad Gary, who called Cyrus "Becky with the good moves!"

The pair ended the sketch by drinking Pumpkin Spice Lattes from Starbucks and jamming out.

Cyrus appeared on The Tonight Show on Friday where she opened up about being a first-time Voice coach. The "Wrecking Ball" singer said that the bickering between fellow coaches Adam Levine and Blake Shelton is 100 percent real.

WATCH: Miley Cyrus Holds Hands on Date Night With Liam Hemsworth, Explains Vow to Never Walk Red Carpet

"It never stops even when the cameras are off. That is real," she said. "I always thought it was a thing, their little thing they do on camera, no, it's all day."

For more of The Voice coaches' antics, watch the video from the show's premiere!

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