Selena Gomez（who says),Taylor swift(speak now ,we are never ever getting back together), Owl city(the saltwater room),greyson chance(Paparazzi),Pixie lott(cry me out),Declan Galbraith (tell me why),Cody Simpson (summer time of our lives),Nick Jonas(introducing me ), Harry Styles（let me go) ,Amy Diamond (hello),Miley Cyrus（breakout） ,Demi Lovato（This is me ) ,Connie Talbot(somewhere over the rainbow) ,Cher Lloyd (beautiful people)Diana Vickers(Four leaf clover),Aaron Carter(Do you remember),Jesse McCartney(beautiful soul,because you live),one direction(what makes you beautiful),Troye sivan(there's a hero),Hilary Duff(someone's watching over me)
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