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(KSDK) – Seth Rogen was the guest on "The Tonight Show Starring Jimmy Fallon" Tuesday night, but surprise guest Zac Efron really stole the show.

Fallon, Rogen and Efron had fun as teenage girls during a sketch of "Ew!" The three took selfies, danced and talked all topics that made them go "eew."

Check out the full sketch of "Ew!" below.

Fallon and Rogen also discussed James Franco and more during his interview, which you can check out below.

Although Efron made a surprise appearance Tuesday, he's officially scheduled as a guest Wednesday night to discuss his new film, Neighbors.

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