CMT Top 20 Countdown   -  About the Episode

The stars are out in full force for this week's Top 20 Countdown as host Lance Smith brings you clips from Dreamworks' new 3-D film Monsters vs. Aliens. See what the cast of the film, including Reese Witherspoon, Rainn Wilson, and Seth Rogen, had to say about making the movie. Also on the show, enjoy bonus videos from Rodney Atkins and last season's Can You Duet champs, Caitlin & Will. Watch as Atkins shows his patriotism in his newest hit, "It's America," and Caitlin & Will take you on an emotional ride through Nashville with "Even Now." Then find out how you can win big in CMT's Taylor Swift Karaoke Cruise Contest, all by singing your favorite Swift hit. Check out videos from Keith Urban, Dierks Bentley and Jimmy Wayne on Top 20 Countdown. See photos from the set and more.