Jake Gyllenhaal Sang Showtunes for Cowboys

Billy Crystal says the young actor did a lot of horsing around on the set of City Slickers

It's a good thing Jake Gyllenhaal and Reese Witherspoon are tied at the hip—otherwise, Billy Crystal's commentary on the new collector's edition of City Slickers might raise some eyebrows...

Remember Billy's young son in Slickers? We didn't, but it turns out the Brokeback Mountain star already had a cowboy movie to his credit—Gyllenhaal made his debut as a 10-year-old in the Crystal-helmed Western comedy.

Thanks to a review of the reissued DVD in the June 6 issue of Entertainment Weekly, we learn that the popular Oscars host pokes fun at his young costar in the film's extras (or maybe it was just a psychic casting prediction):

“He was always performing,” remembers Crystal. “He would sing from South Pacific and we’d all go, ‘He’s gay, he’s going to be gay.’”

Not that there's anything wrong with that.