CMT Top 20 Countdown   -  About the Episode

Check out this week's Top 20 Countdown as guest host Katie Cook brings you country music's hottest videos. Plus, you won't want to miss exclusive interviews with the cast of the new film The Lovely Bones arriving in theaters Jan. 15. Also on the show, find out what fans are saying about Brad Paisley's latest video, "American Saturday Night." Plus, Jason Aldean has extended his Wide Open tour. Get details on which Georgia native will join him on the road. Then find out which country star will be next week's Top 20 Countdown guest host. Check out videos from the Zac Brown Band, Josh Turner and Miranda Lambert on Top 20 Countdown. See photos from the set and more.