Green Day - American Idiot.
All I can say is this has to be one of my top 10 albums ever. Green day calls it a rock 'opera', I understand what they were going for, the album is awesome from start to finish. The second track, "Jesus of Suburbia" is a 10 minute song that changes tempo 3 or four times. It's probably the best track on the album.
If you get a chance, check out the live concert of the American Idiot album, where Green Day plays a live show in England to 130,000 people over two days. It's called "Bullet in a Bible". It's produced well, and is well worth the $14 (especially if you have a video ipod).
Anyways, I know this album has been out for several years, but I just have to say how great it is, start to finish.