Little Big Town just picked up their very first GRAMMY Award Sunday night for their two-week #1 song, “Pontoon,” and tonight they’ll be appearing on The Late Show with David Letterman to perform their latest single, “Tornado.” The late night TV appearance is just a pit stop along the way of their Tornado Tour, which they’re currently criss-crossing the country with, and this summer they’ll join Keith Urban on the road for his U.S. headlining tour.



