Music in the "Corpse Bride" trailer?

I really oughta know this…

The trailer for Tim Burton’s upcoming movie “The Corpse Bride” features a rather famous classical piece, but I’m drawing a blank on the name/composer.

Someone here knows, I’m sure.

Grieg’s “In the Hall of the Mountain King” from the “Peer Gynt Suite”

…and the worst part is, I was just listening to a MIDI of that the other night. It wasn’t exactly high-quality, but still…

Thanks.