It was done in 2004 as part of a medley.
It's in track 14 of "The Blue Album," which is curiously not available on the MMB website.
http://mmb.music.umich.edu/
It may not be online, but it's available at M-Den and Moe's.
While you're at it, buy "The Maize Album" as well.
of the White Album.
I'd definitely be more willing to watch a halftime show if it were something interesting like this, and not A Night at the Opera....
I have been to 3 MD football games and 4 MD basketball games, and the UMD band plays all kinds of great songs, from Zelda to Teenage Mutant Ninja Turtles (naturally) to the Maryland Victory Song, which is actually a pretty good fight song. They are definitely one of the more entertaining bands to listen to musically (though I can't put them above Michigan of course).