There's an old saying that's worth repeating: "There's humor in repetition." It's hard to say if this is more or less true depending on how humorous the source material is. For example, the quoted statement above isn't particularly funny, but it can become meta-humorous if repeated. There's humor in repetition.
Philosophies of humor aside, there was a play in the Thanksgiving Day Patriots-Jets game that was hysterically funny, and as far as I can tell, it just gets funnier with each viewing. (It might help that I'm a Patriots fan.) Jets quarterback Mark Sanchez was trying to make the best of a broken play and boldly careened towards the line of scrimmage, hoping to follow his linemen to daylight. Instead, one of his blockers got pushed backwards directly into Sanchez and the rest...well, you can view it as many times as you like below. (If you didn't see the game, it's worth noting that the collision caused Sanchez to fumble, which led directly to a Patriots return for a touchdown, one of three such scores in a dazzling 52 seconds of game time.)
As enjoyable as it is to watch the play, it only seemed natural to add a soundtrack. But what to add? Well, this being a very lowbrow vacation weekend project, I didn't expend too much energy on the question, and opted instead to offer a series of possibilities. Here you go (music changes at 0:58, 1:50, 2:03, 2:36, 3:20, 3:33, and 3:36; I started out with a couple of soundtrack warhorses, then got a little more creative).
I think they all work pretty well, although I'm sure there are many other excellent possibilities. As ever with these kinds of semi-random mashups, the delight is in seeing unintended synchronizations between the music and the video. Even synchronization with silence (as at 3:27) can seem right. It's the perfect ballet.