Demi Lovato and Olly Murs sing 'Up' on The X Factor UK (VIDEO)

Demi Lovato and Olly Murs performed their duet 'Up' on The X Factor UK 2014 Series 11 Final Results Show on Sunday, December 14, 2014.

The single is from Olly Murs new album Never Been Better. (Download on iTunes)

Olly was a contestant on The X Factor UK and Demi of course is a US pop star and former judge of The X Factor USA.

I thought this was a great performance and I loved that they both sang live. Great job!

Watch the video here: