![Emily Blunt Slays ‘Piece of My Heart’ on ‘Lip Sync Battle’ [FULL VIDEO]](http://townsquare.media/site/252/files/2015/04/Emily-Blunt-Lip-Sync-Battle.jpg?w=980&q=75)
Emily Blunt Slays ‘Piece of My Heart’ on ‘Lip Sync Battle’ [FULL VIDEO]
Emily Blunt channeled her inner Janis Joplin during the April 9 episode of Lip Sync Battle, absolutely slaying her performance of "Piece of My Heart."
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