Duck Sauce is a collaboration between Armand Van Helden and A-Trak. They decided to team up and create some disco house tunes in a 2009 way and so far so good. As they put it ” its melding the spirit of classic disco house with modern day production thump and clever new twists”. To break it down in lay man terms: they update the old with the new to create the future. To get a little more info and hear them talk about the project check out this interview here.