CMT Top 20 Countdown   -  About the Episode

Catch this week's Top 20 Countdown as host Evan Farmer brings you country music's hottest videos, along with two bonus singles. First, get to know newcomer Kacey Musgraves with her gritty tune, "Merry Go 'Round," then hold on tight as Little Big Town's "Tornado" sweeps in.

Also on the show, we'll tell you about Tim McGraw's return to the world of hip-hop. Then find out Luke Bryan's marriage advice to Thomas Rhett. And learn how Mother Nature played a role in Jason Aldean's video, "Take a Little Ride."

Check out videos from Miranda Lambert, Taylor Swift and Florida Georgia Line on Top 20 Countdown. See photos from the set and more.