Throw out some good new bands?

I'm really tired of the same music on my ipod so I'd like some new songs by new bands. I listen to pretty much anything except for oldies, very little country, not much rap but the stuff I do listen to is like R. Kelly or Nelly or DMX old stuff like that..so I guess the main stuff I listen to is any kind of rock and pop-mainly guy singers. So just throw out some bands you like that aren't hugely well known but not invisible either =] And it'd be nice for some names of the good songs by them too..ThAnKs MuChAs =P