Emily Blunt and Anne Hathaway Face Off On 'Lip Sync Battle': Watch!

Courtesy of Spike TV
Anne Hathaway performs "Wrecking Ball" on Spike TV's Lip Sync Battle.

Reunited and it feels so... funny!

When The Devil Wears Prada co-stars Emily Blunt and Anne Hathaway competed against one another on this week's Lip Sync Battle, both women pulled out all the stops. Hathaway performed Mary J. Blige's "Love" and Blunt opted for Blackstreet's "No Diggity" to kick off the game. But as they headed into the final round, that's when each actress stepped up her game to epic proportions.

It's no secret that Hathaway went into full Miley Cyrus mode for her take on the singer's "Wrecking Ball" video, but Blunt also held her own with her retro-tinged performance of Janis Joplin's "Piece of My Heart."

In the end, only one woman could go home a winner. And this week Hathaway earned bragging rights.