Leona Lewis

Simon Cowell Supported By Host Of Famous Friends At Hollywood Walk Of Fame Ceremony

And of course, Sinitta was there too.
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Lady Gaga 'To Cover Amy Winehouse Classic' For A Good Cause

'Stars all over the world are going to do an Amy track...'
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How Will Louisa's Debut Single Compare To These Previous 'X Factor' Champs'?

Past winners have had mixed results with their first post-'X Factor' release?
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