CMT Top 20 Countdown   -  About the Episode

Catch this week's episode of Top 20 Countdown as award-winning group Lady Antebellum guest host the show. Also on this episode, catch bonus videos from Sarah Buxton and Keith Urban. You won't want to miss Buxton's optimistic single, "Outside My Window," and Urban's longing for lost love in "'Til Summer Comes Around." Plus, find out about Chris Young's love of jazz music, and find out how the Zac Brown Band are connecting with their fans at the dinner table. Check out videos from the David Nail, Taylor Swift and Tim McGraw on Top 20 Countdown. See photos from the set and more.