Ok, it's mid to uptempo sort of dance song, with a girl singing it, there's a piano refrain throughout the whole song that sounds like a slightly slower version of this oddly enough http://youtu.be/mDJwA6_KDP4. The girl sings the same line for the entire song which is 'I love....[can't make out end of line, could be 'mocking you' or 'the way you do'] in a smooth jazzy way, very light & lovely voice. Then halfway through, a rapper appears, most of his lines are so inconsequential to even be memorable but he mentions "Grandmaster Deluxe", "taking it back to the old-school" and other things. It's a very lovely & light song, played in the department store I work in. No idea where it's from. I couldn't have been more vague here but if anybody has ANY IDEAS please post??