Thompson Square have earned their very first No. 1 song, as 'Are You Gonna Kiss Me or Not' tops both the Mediabase/Country Aircheck and Billboard country charts this week. Jason Aldean's 'Don't You Wanna Stay' duet with Kelly Clarkson remains at No. 2 on both charts, followed by last week's chart-topper, Billy Currington's 'Let Me Down Easy.'

The husband-wife duo (Keifer and Shawna Thompson) have already sold more than 500,000 downloads of their hit, written by David Lee Murphy and Jim Collins, and have been experiencing a lot of firsts in their career lately. They recently appeared on NBC's 'Tonight Show With Jay Leno,' and are set to perform 'Are You Gonna Kiss Me or Not' on Conan O'Brien on Thursday (March 31), to which Keifer tweeted, "It's gonna be classic!," mentioning they will be appearing on the same show as Johnny Knoxville.

The pair are set to heat up the stage when they hit the road on the summer leg of Jason Aldean's My Kinda Party tour, launching in Milwaukee, Wis., July 8. Prior to that, they'll perform numerous other shows, including a pair of dates in Las Vegas this weekend. On Saturday (April 2), Thompson Square will perform as part of the ACM's Fremont Street Experience, as well as the ACM Fan Jam on Sunday (April 3), according to their website.