Hit-ITunes top 10 songs Katy Perry “ ET” - Rihanna “ S&M”” - Black Eyed Pead “Just can't get enough” - Lady Gaga “Judas” / Adele “ Rolling in the deep” /Jeremith “ Down on me” /Bruno Mars “the Lazy song” /jennifer Lopez “ On the floor” /Chris Brown “look at me now.” / Britney Spears “till the world ends