Duck Sauce — the disco duo of A-Trak and Armand Van Helden — have returned with “Smiley Face,” their first song in six years. The track is a burst of pure dance floor joy, with euphoric ...

Tonight, they’re back with their first new song in six years, “Smiley Face,” a chaotically vibrant dance track that seems to signify a more permanent return for the duo.

“‘Smiley Face’ is a song I wrote when I was very excited about talking to someone off a dating app,” said the artist (real name Amber Bain).