Leona Lewis – X Factor
Leona won the third series of X Factor back in 2006, beating Ray Quinn (you’re thinking “who?” right?) and releasing a cover of Kelly Clarkson’s A Moment Like This. Leona shifted over half a million copies – outselling the rest of the top 40 combined. Leona is now world famous, has received string of impressive awards and has featured on movie soundtracks (she recorded the theme for a little film called Avatar)! Huge!