Emily Blunt and Anne Hathaway were once enemies in the movie The Devil Wears Prada, and last night (April 9), the actresses got into it again on Spike's new TV show Lip Sync Battle. Based off the popular The Tonight Show segment, the competition pits two celebrities against each other as they try and fake-sing their hearts out. And Blunt and Hathaway brought out the big guns with "Piece of My Heart" and Miley Cyrus' "Wrecking Ball."

Though Hathaway's performance has been teased for weeks on commercials and came complete with a sledgehammer and that infamous piece of construction equipment that is the wrecking ball, Blunt's performance was a flower child surprise, as she took on Janis Joplin's classic rock hit, complete with a fur coat and plenty of flowers to complete those hippie vibes.

Though Blunt's performance was solid, Hathaway really sells it, with red lipstick, Doc Martens and even that Miley Cyrus tongue.

Watch the Lip Sync Battle performances below:

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