This was on VF recently and I was honestly surprised that there are people who find it funny.
Not this particular piece, but their videos in general.

There is something surreal about auto-tuned Ron Paul.

They tried a bit too hard on this one to inject their own lyrics, I think, but Katie Couric still sounds awesome.

not very funny, but catchy

I think you have to be able to stretch a concept of 'funny'.