I give them props for doing it so in tune. The male high vocals are impressive. But for me the performance is a bit sterile.
There's a bit more interest in this performance for me. Not just musically but visually as well. There's a flippancy to Nash that makes it fun IMO. He does what he does to get that signature high part.
In fairness it's one of those songs that does rely on it's evenness and vocals lining up in favor of a oneness of character. Stills guitar work has a little more happening than Brandi's guitar player, though he is solid.
https://www.youtube.com/watch?v=Lb6hUFlzM7Q