DeYoung co-founded STYX as a teenager alongside his neighbors Chuck and John Panozzo in the early 1970s.James Young joined shortly after that, with Shaw coming on board in 1975.
Three years ago, Shaw likened STYX's relationship with DeYoung to a divorce. "You get married when you're young and everything's rosy," he told "The Big Interview". "Then, as you start to get a little older, you realize you didn't have that much in common and then you go through a tough divorce… We still have songs that we co-wrote together, and those are our children, and we've managed to find a way to keep those things in play."