Not only does this Voice judge have a knack for impressions, but she obviously can roll with the best of them! So step aside Beyonce because Christina Aguilera is about to steal your song, gurl! The ... more 
Not only does this Voice judge have a knack for impressions, but she obviously can roll with the best of them! So step aside Beyonce because Christina Aguilera is about to steal your song, gurl! The fresh-faced judge gave her two contestants a singing lesson that even had Ed Sheeran in awe! Christina had some great pointers and [...] less 
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Wochit
Wed, Oct 16, 2013 5:33 PM EDT