Fans at Justin Timberlake's recent tour stop in Nashville got an unexpected surprise when Garth Brooks joined the pop star on stage to perform his hit song 'Friends in Low Places.'

"I mean, this is the country music capital of the world, right?" Timberlake asks the Nashville crowd in the video above, before leading his band into the first verse of the song.

"Hold on, hold on, hold on, hold on," he says, cutting off the crowd and band part of the way through the chorus. "Now something don't feel right, Nashville. I mean, if you're going to do this s--t ... Garth?"

The crowd erupts into cheers as Brooks enters the stage and starts up on verse two -- and the song's infamous, live-only third verse -- with the pop star.

Timberlake has covered the song at other stops on his 20/20 Experience World Tour, including at a performance in Oklahoma City, Okla., earlier this month, the day after sitting in the front row at one of Brooks' shows in St. Louis, Mo.

Timberlake is known as a pop singer now, but the 33-year-old, a Tennessee native, was all country when he made his television debut on 'Star Search' at 11 years old. Timberlake went on stage as "Justin Randall," in a cowboy hat and bolo tie, and performed Alan Jackson's 'Love's Got a Hold on You.' He ditched the country personal when he joined the Mickey Mouse Club as a teenager, but he's obviously still a fan of the music.

Find a list of upcoming Brooks tour dates as he announces them here.

You Think You Know Garth Brooks?