Leona Lewis and the Black Eyed Peas are to perform live on The X Factor on Sunday 8th November. Leona Lewis will perform her 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.

The Black Eyed Peas have held the #1 spot on the US Billboard Hot 100 Singles Chart for a whopping 6 months. This is the longest consecutive stay ever for any artist in the Billboard Chart’s 51-year history. Here in the UK, their album, The E.N.D is already platinum and ‘Boom Boom Pow’ and ‘I’ve Gotta Feelin’ have sold more than a million copies between them both featuring in the top 5 biggest selling singles of 2009.