The lovely and talented RaeLynn joins us on this week's edition of Hot 20 Countdown. Tune in as she co-hosts the show alongside Cody Alan and reveals hidden talents and tattoos, and even takes part in our Cornhole Challenge. Also on the show, Dolly Parton wigs out. See which hairstyle the icon regrets and get the scoop on who she wants to duet with next. Plus, we'll reveal the eight videos moving on to round four in our Hot 20 bracket. Find out if your picks made the cut.