Help please. I can't find this song.

I've tried all those other things that can help you find a song but they didnt work. Mostly because the search engines arent specific enough. Anyway, I heard this song on the radio and Ive been trying to figure out what it is. Here are the things I know about it:

1. It is a Rock/Metal song

2. This is not a screamo metal song

3. It is a duet of a guy and a girl

4. the chorus has these lyrics sung by the girl in it "Never back down"

That's all I know, if anyone knows this song i'd appreciate it greatly

anybody?

This is the only metal song that comes to my mind with a "Never back down" in it's chorus...
Never Give In Black Veil Brides
http://www.youtube.com/watch?v=DEuNZA2xyG0

Maybe Skillet - Awake and alive?

omg thank you thats it!