Ten Good Bands (Read The RULES)

1. Ecape the Fate
2. Flow
3. UVERworld
4. Orange Range
5. L'arc~en~Ciel
6. Asian Kung-Fu Generation
7. Bump of Chicken
8. Back-On
9. Janne Da Arc
10. Abindon Boys School

haven't heard some of those will check them out

Yeah, the're good, but I must warn you, all of them except the first one are J-rock bands. All of the J-rock bands have done openings for anime, so you might have heard them before and just have not known it.

Whatever Japanese doesn't bother me you just need to post in the link i gave you in your introduction