Another song of the day and if you don't know it, you better listen up quick. First #1 single as a solo artist from Justin Timberlake and grammy winner of the best dance recording category. "Best dance recording is a grammy category?" - Betsy Hayes. Possibly overplayed but there's no doubt that "this song effing kicks ass" - Matt Mentele. Whether you love it or hate it, do yourself a favor and put it on for old times sake and #GoHaveADance