Visit the official site: http://itv.com/xfactor Returning to the stage where it all began, Louis Tomlinson performs his debut solo single, Just Hold On, on The X Factor Live Final! SUBSCRIBE: http://bit.ly/TXFSub Facebook: http://bit.ly/TXFFB Twitter: http://bit.ly/TXFTwi Download The X Factor mobile app: http://bit.ly/TXFapp Watch full episodes on ITV Hub (UK ONLY): http://www.itv.com/hub/the-x-factor

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