Technically, these guys are pretty new; they only have 2 albums out (one of which is just an acoustic version of their first.)
BUT, they have been together for longer than that because they used to be called Yellow Cavalier and put some great stuff out then as well.
Anyways, they put out some of my favourite worship music. I'm constantly blown away by their talent, especially when I watch their live performances.
You should definitely check them out; here's their website
http://anthemlights.com/