Rascal Flatts joined The Voice top 8 finalist Brennley Brown for an incredible harmony version of "Yours If You Want."

The uptempo song got the audience on their feet as the four joined voices on stage.

Brennley Brown made it all the way to the semi-finals, when she was unfortunately eliminated from the show.

But since she was such a fan favorite, she was invited back for this incredible performance with current Go Country 105 guest hosts, Rascal Flatts.

Check out the video below.