Back in the 1980s, Jimmy Hart, up to that time known as the frontman for The Gentrys (a one-hit wonder group best known for the ironically short "Keep on Dancin'"), wound up in what was then known as the World Wrestling Federation. Because Hart had a number of musical connections, he and WWF chairman Vince McMahon developed the Rock 'n' Wrestling Connection, in which top musicians would cross over into WWF shows. As a marketing ploy, it was pure genius: the WWF soon came to dominate pro wrestling by the early 1990s, challenged only by Ted Turner's WCW. Other circuits ended up collapsing right around that time.
However, the Rock 'n' Wrestling Connection also had a number of side effects-- namely, pro wrestlers decided to get in on the action and start recording albums, with Hart's help. The first was a compilation album,
The Wrestling Album, which did not feature WWF's biggest star, Hulk Hogan (himself a competent bass guitarist), but did feature most everyone else. Hogan got his own album instead,
The Wrestling Boot Band: Hulk Rules. According to him, he hired his then-wife Linda to do backup vocals because she sounded better than the rest of the crap.
Rock 'n' Wrestling, much like rock music in general, died out in the mid-1990s with the rise of the Attitude Era; WWF bought WCW and became World Wrestling Entertainment, WWE, in 2001. As for Hogan, he's mostly retired, but I did see him pop up this morning doing a spoof video of Miley Cyrus's "Wrecking Ball," wearing a thong and spanking his almost-70-year-old self. It's pretty traumatic stuff.
Here's Hulk Hogan and his Wrestling Boot Band with "Beach Patrol."
http://www.youtube.com/watch?v=dLykknlM7Ls