Please help me identify this female-sung metal song?

It sounds quite modern, not like 70's/80's metal. It's sung by a woman and has male backing vocals. It was quite by and there was a lyric like "i say jump you say how high", and another hook that sounded somewhat like "I'd die for you". It's a long shot, I know, but I heard it in someone's car when I was waiting at the traffic lights and I liked it. Oh, and it's NOT the Flo Rida/Nelly song. Thanks in advance for any answers.