Watch: One Direction, JLS, Leona Lewis & Michael Buble Perform at 'The X Factor UK'

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Watch: One Direction, JLS, Leona Lewis & Michael Bublé Perform at 'The X Factor UK'

Marcus Collins and Little Mix will fight to be crowned 2011 X Factor UK winner this Sunday, after the shocking elimination of Amelia Lily on Saturday's season finale pre-show (December 10th) at Wembley Arena. During the last live show of the eight series, several celebrity guest perfomers took the stage at the famous London venue. First, X Factor-formed boybands JLS and One Direction joined forces to deliver a mash-up show of their hits "She Makes Me Wanna" and "What Makes You Beautiful". Next, British vocal powerhouse Leona Lewis performed her new single, off her upcoming EP, the Johnny Cash/Nine Inch Nails cover "Hurt". She may slay this song live, but releasing this as a single? No ma'am! Finally, Michael Bublé treated UK viewers with a performance of 'Christmas (Baby Please Come Home)', a cover included on his latest holiday album which is selling like hotcakes around the globe! Watch it all below.

What do YOU think of these performances?