Alter Bridge, in case you've been in a cave for the last decade, is the band that Mark Tremonti formed after Creed dissolved, to put out music that's a bit heavier than Creed, but still melodic.
He snatched up one of the best singers around right now, Myles Kennedy, and they've not looked back!
The new album, Fortress, came out last year, and it's freaking amazing! If you don't have it, pick this album up and play it in your car REALLY LOUD. Or in your home. Either way, it's great.