Watch Emily Blunt take on Anne Hathaway in a lip-sync battle

The Devil Wears Prada co-stars Anne Hathaway and Emily Blunt have reunited for an epic lip sync battle - moderated by LL Cool J.

The night began with Hathaway singing Mary J. Blige's Love. The actress appeared to steal the show, until Blunt came on to perform Blackstreet's No Diggity.

Our favourite moment of the performance? When Blunt gave Hathaway a mock lap dance.

The games really began when they started the second songs. This saw Hathaway on her very own wrecking ball and Blunt singing Janice Joplin's piece of my heart.

And there was certainly a lot of trash talk:

Our verdict? A tie.

Watch the full performances below:

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