Brett Eldredge joins us in our studio to co-host this weekend's CMT Hot 20 Countdown. Tune in as we catch up with the sexy singer on everything from his recent milestone, to Snapchat, to covering Tim McGraw hits. Also on the show, Luke Bryan and Dierks Bentley prepare to host the 51st annual ACM Awards on April 3. We'll find out how their preparations are going. Then see if Sam Hunt's "Breakup in a Small Town" can hang on to the No. 1 spot for a second week in a row.