Leona Lewis is all set to perform live on tonight’s X Factor results show. She will be singing her new single ‘Happy’, ahead of the launch of new album ‘Echo’ on 16th November. The Black Eyed Peas will perform their single ‘Meet Me Halfway’, released on 2nd November.

Leona Lewis’s first album, ‘Spirit’ sold over six million copies worldwide. It earned four Brit Award nominations and three Grammy nominations, making it the best selling album of 2007 and 2008 in the UK and the US respectively.