 He co-sang lead with his brother Edmund on the Number One 1976 "Billboard" Hot 100 and Hot Soul Singles song "Boogie Fever".While with Capitol, Foster released another self-titled album called "Foster Sylvers" in early 1978, primarily produced by his family The Sylvers and their managers Al Ross and Bob Cullen.Foster then branched out into studio work just like his big brother Leon collaborating on many projects such as with Dynasty ("Your Piece of the Rock", "When You Feel Like Giving Love", "Satisfied") and Evelyn "Champagne" King ("Shake Down," number 12 R&B, spring 1984).