CMT Top 20 Countdown   -  About the Episode

You won't want to miss this week's Top 20 Countdown as host Lance Smith welcomes country legend Dolly Parton. Get the latest on this icon as she chats with Smith in the studio. Plus, catch a bonus video from a quartet who's "Wild at Heart." Get to know Gloriana before they head out on the road with Taylor Swift for the Fearless Tour 2009. Also get details on how Sugarland is spreading the "Love" in Europe and find out which country star is going to be a proud papa again. Enjoy videos from Jason Aldean, Jimmy Wayne and Zac Brown Band on Top 20 Countdown. Check out photos from the set and more.