This week's episode of CMT Hot 20 Countdown is full of surprises. Tune in as Maddie & Tae guest host the show. We'll put the dynamic duo to the test as they take part in our Cornhole Challenge, and show off their artistic side in a battle of Southern Draw. Also on the show, we get the scoop on Brad Paisley's once-in-a-lifetime opening gig, the story behind A Thousand Horses Band name, and a rescue mission Willie Nelson will never forget. Enjoy all this and more Saturday and Sunday mornings at 9/8c.