Faith Hill [1] and Tim McGraw [2]'s absolutely gorgeous new duet, "Speak to a Girl," made its TV debut at the ACM Awards [3] on Sunday night. The longtime couple, who's been going country strong for nearly two decades [4], looked like they were falling in love all over again while staring into each other's eyes during the romantic performance. Pro tip: if you're in the mood to swoon, make sure you watch all the way to the end.