Kris Humphries, whose divorce from the Keeping Up with the Kardashians star was finalised in May after a 19-month battle, plays himself and indirectly pokes fun at his single status as a new member of the 'Getting Over It' gang on the Fox show, which aired in the U.S. on Tuesday night.
The 28-year-old Boston Celtics player told UsMagazine.com that he was anxious about his cameo.
He said: "You're always nervous where people are really talented and you don't do this really, but as time went on, just being out there and messing around with the guys...I loosened up a little bit and ended up having a good time."
A preview of the episode shows Kris joining the gang alongside Danny, played by Chris Messina, Tom, played by Bill Hader, and a few other single guys, and chanting with them in a circle during a meeting: "Just because we don't have wives doesn't mean we don't have lives. Single and cool, single and cool, single and cool, yes!"
Kris married Kim, who now has a three-month-old daughter, North West, with her boyfriend Kanye West, in a lavish ceremony in August 2011 but their marriage lasted just 72 days.
It was recently revealed that the NBA star is planning to auction off the 20-carat engagement ring he gave Kim, 32, at Christie's auction house in New York City on 15 October.