Don't really know what to think of the song. The bridge and verses are effin HOT but the chorus is disappointingly light and like freedreamer said, too 'happy'... I don't mind copy&paste styles of composing but it threw off the momentum of the song. The bridge deserved a big, badder chorus to lead up to. The 'Mirror, Mirror' hook is boring too. But I think I like the rest of the song enough to ignore those tidbits.
Best line: "LEMME FIX MY MAKE-UP" That's gonna be so hot during the live performances.