As you can tell from my avatar, it's The Alan Parsons Project. Not only does the music encompass everything from rock to pop to prog, and other genres, it often scales to amazing depths that you can appreciate as you grow older. Even though I just recently got into their entire catalogue, I don't think this could've been my favorite band when I was younger.
And yes I know it's not really a band, but for purposes of this discussion, we'll call it one.