The Infinite Improbability Drive (The IID) is both "a wonderful new method of crossing vast interstellar distances in a mere nothingth of a second, without all that tedious mucking about in hyperspace," and a band of weirdos out of Athens, Ohio. The Guide describes their music as, "like having your brains smashed out by a slice of lemon, wrapped 'round a large gold brick."
This also happens to be the entry for what is considered the "best drink in existence."