With the season finale of The Voice happening last night, and Michigan's own, Joshua Davis finishing third, there were some exclusive digital shorts released to help promote the finale. This wasn't available on TV, just via the web and if you missed this one in particular, well here it is. It's no longer really a rumor that Christina Aguilera does some pretty killer impressions of some celebrity friends. In this clip she does impressions of Sia, Miley Cyrus, Cher and more. My favorite has to be her impression of Cher. It's hilarious. Check this video out for a solid laugh today.