What are some good Hard Rock/ and Metal songs/bands?

I'm looking to buy some new songs with new bands and I would like some
ideas with bands/songs. And the bands don't have to be christian
bands... Some bands I like are: As I Lay Dying, August Burns Red,
Skillet, Red, Avenged Sevenfold,Bullet for My Valentine, The Devil
Wears Prada, etc..

So if there are any bands you like, please me the band along with some
good songs by them.

Thank you.

(Oh, and I'm thinkin of newer bands. Not like Metallica or bands like
that...)