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Watch Seth Rogen and Zac Efron As Teen Girls

May 07, 2014

Zac Efron and Seth Rogen are hilarious - even as teen girls.

The Neighbors co-stars joined Tonight Show host Jimmy Fallon for his recurring bit "Ew," where he acts as a teenager and is joined by his best friends to discuss what's cool and what's not.

Efron, 26, and Rogen, 32, are not the first stars to impersonate tweens for Fallon's "Ew" segment. Other celebrities who have joined the host in the past include Channing Tatum, Will Ferrell and Lindsay Lohan.

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