Tim McGraw [1] brought a very special guest on stage with him during his set at the CMA Festival in Nashville on Thursday night. His wife of 17 years, Faith Hill [2], popped up to help perform their ballad "Meanwhile Back at Mama's" for the crowd. The country stars capped off their song with some pretty hot PDA: Tim lifted his lady's leg off the floor and grabbed her butt while giving her a steamy kiss. Talk about a show! They shared a cute hug before Faith disappeared backstage, but the PDA was on again on Friday morning when Faith tweeted a sweet photo [3] of the couple puckering up for the camera, saying, "My first selfie! On video shoot for 'Meanwhile Back At Mama's.'" Keep reading to see all the pictures of Faith and Tim's steamy onstage kiss, then get ready for Summer with the sexiest photos of stars showing PDA [4] on the beach.

Source: Getty/Frederick Breedon IV [5]

Source: Twitter user FaithHill [6]