Kane Brown + wife Katelyn take the stage together for first live performance of their hit duet, “Thank God”

Kane Brown had a very special surprise up his sleeve when he took the stage in Ottawa, Canada, on Thursday night: His wife, Katelyn, joined him onstage for the very first performance of their hit duet, "Thank God."

"Thank God" is Kane's current radio single, and it's rapidly rising up the charts. The track comes off of Kane's Different Man album and has been in the making for a long time.

"My fans have been waiting for five years for us to sing together," he told People upon the song's release, revealing that the couple went through four other duet ideas before settling on "Thank God."