During his CMA Fest headlining set at Nissan Stadium on June 8, Tim McGraw delighted fans by performing his 2003 No. 1 hit, “Real Good Man.”

Tim had a real good treat for fans as he began the third verse—he welcomed country’s hottest star, Luke Combs, onstage to help him finish the tune.

Watch Tim and Luke collaborate on the No. 1 hit below.