Kelsea Ballerini, Morgan Evans and Ed Sheeran walk into a bar ... It sounds like the beginning of a joke, but it really happened in Nashville in mid-October. Readers can press play above to watch the married country couple and the pop star enjoy a round of karaoke, captured by a fan who was in the right place at the right time.

Ballerini, Evans and Sheeran's karaoke song of choice? The Backstreet Boys' 1999 hit "I Want It That Way." Sheeran performed at Nashville's Nissan Stadium on Oct. 6 and stuck around town for a few extra days; his karaoke night happened on Oct. 11, but earlier in the week, on Oct. 9, he played a writers' round at the famous Bluebird Cafe.

Ballerini has been known to enjoy a night of karaoke with some famous friends: In July, following pop star Halsey's Nashville tour stop, the pair showed up at Santa's Pub and treated the crowd to a couple of songs.

Ballerini's been out on the road with Keith Urban, opening shows on his Graffiti U World Tour. She was back home in Nashville to support Evans, who released his U.S. debut album, Things That We Drink To, on Friday (Oct. 12); she stopped by his album release event to perform the song "Dance With Me" with him.

Sheeran, meanwhile, has tour stops scheduled into early November. On Wednesday (Oct. 17), he'll play in Fargo, N.D.

County Stars and Their Famous Friends