Nashville fans who attended Tuesday night's (April 13) Tori Kelly show at the historic Ryman Auditorium got a real treat when country star Hunter Hayes joined the female vocalist powerhouse on stage for an amazing duet.

Kelly invited Hayes on stage to sing Hayes' 2011 hit "Wanted." Hayes provided guitar and vocals and Kelly stepped up to give the ballad — and the crowd — the rest. The pair's voices complemented one another beautifully to create a fantastic rendition of the already incredible song.

This wasn't the first time the duo were made aware of each other's musical talents. Hayes and Kelly met one another 12 years ago, when they were both contestants on America's Most Talented Kid. But Tuesday night served as quite the reunion — this was the first time they have seen each other since!

Kelly is currently making her way around the country as a part of her headlining Unbreakable Tour. The tour will wind through the states before it wraps in Los Angeles at the end of May.

Hayes is currently on the road as well, playing dates in Georgia and South Carolina this upcoming weekend. All stops he will be making, as well as tickets, can be found on his website. He most recently released his latest music this past November as part of The 21 Project. It includes 7 tracks all showcased in one acoustic, one live and one studio version.

“I’m trying not to call it a record,” the star tells The Boot, furthering, "We’re calling it a project because it was a lot. It was a huge undertaking on everybody’s part. It was fun."