David Nail wants to kiss and tell on this week's CMT Hot 20 Countdown. Tune in as the singer performs his latest release, "Kiss You Tonight," as a part of our Mtn. Dew Summer Concert Series. Also on the show, Nail will chat with Katie Cook, and we'll check in with Dierks Bentley as he continues his Riser tour. Plus, find out who Charles Kelley and Dave Haywood of Lady Antebellum have a little crush on, and get your votes in for our Hot 20 Country College Town Sweepstakes.