VIDEO: Watch Leona Lewis perform her new single 'Trouble' on The X Factor 2012

Leona Lewis 2 (X Factor 2012) Former X Factor winner Leona Lewis appeared on the ITV1 talent contest tonight to showcase her new single 'Trouble'!

The diva treated viewers to a stripped back performance of the track, which is the first proper single to be released from her new album 'Glassheart', out next week.

Having appeared as a guest judge at auditions, Leona also commented on contestant Jade Ellis, whom she put through to boot camp: "I watched her performance last night and she looked stunning and she sounded amazing so I'm so proud of her."

Watch a video of Leona's performance below:

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