The Dallas Cowboys put out a "rap video" when that was the rage. I saw it once, and it was up there with William Shatner singing "Lucy in the Sky with Diamonds". Tom Landry trying to rap was one of the most surreal things I've ever seen. Thankfully, it's so far buried, I don't think you could even find it on the internet.
(I have a Dr. Dementoesque fascination with bad football music)