"Lookin' for a Good Time"? CMT Hot 20 Countdown has you covered. Tune in to this week's edition as Lady Antebellum co-host the show and we get a behind-the-scenes look at their Take Me Downtown tour. We'll also catch up with their tourmates -- Billy Currington and Kacey Musgraves. Plus, the trio takes part in a fun quiz and talks about life on the road and their growing families. And you're sure to love their live performance. Tune in for this and much more.