What song is in the Brooklyns Finest commercial?

Ive been trying to find the song thats playing during the Brooklyns Finest commercial but I keep getting Brooklyns Finest by Jay Z. I dont think this is it unless I have the wrong version or something. It sounds like there is some sort of ascending guitar-like riff playing over and over and then a female singer. I know shes really well known but I wont try and guess who it is because I will probably get it wrong :P Thanks very much!