Willie Nelson and Sturgill Simpson team up for a mesmerizing duet

Last Friday, Willie Nelson’s Outlaw Music Festival Tour gathered fans together in Cincinnati, Ohio. There the country singer brought a special guest on stage for a classic performance.

According to a YouTube video, Nelson performed with Sturgill Simpson. The pair played their guitars as they sang a couple of country songs that had the crowd going.

At the Riverbend Music Center on Friday night fans were treated to an amazing collaboration between Nelson and Sturgill Simpson. The latter joined the legend onstage for a playful rendition of Mammas Don't Let Your Babies Grow Up to Be Cowboys.

The song is a 1978 classic which Nelson originally sang with Waylon Jennings. Simpson is the primary support on select dates of Nelson’s summer's tour.

For more on this story go to our Twitter account @amomama_usa. During their performance, Nelson’s band followed his lead as he played his guitar, Trigger, for the song.

He and Simpson traded lines through the verses. The thrilled crowd joined the two to sing along on the song’s chorus.

Simpson stuck around through the end of Nelson's headlining set that night for the grand finale. The final performance started off with a cover of the Carter Family's Will the Circle Be Unbroken.

The song saw the 85-year-old country legend go into bandleader mode.

At the same time, Simpson was seen on his own guitar. The set was finished off with Living in the Promiseland and I Saw the Light.

In the past, Nelson has had to cancel some events over the winter due to a bout of the flu.

He returned this spring with a new LP called Last Man Standing. The song has reached Number Two on the country charts.

Nelson’s Outlaw Tour will continue through July. It will then have a break and carry on to September, with its next stop on June 29.

The event will be held at Verizon Arena in Little Rock, Arkansas, where Simpson will be featured again.