http://www.funkvibe.com/artists/sly/sly9.htm
After another, popular on-the-air stint at KDIA, Sly recruited siblings Freddie and Rosie, cousin Graham, white high school buddy Jerry Martini and his cousin Greg Errico, and former high school horn player Cynthia Robinson to form the Family Stone. After paying dues in the suburbs and showcasing a knack for making a record sound like its appealing live shows with "Dance to the Music", the group finally struck a chord with the Flower Children on "Everyday People". All the while the group's outlandish live performances featured choreographed onstage movements and fantastic hairdos and costumes which appealed to a rock audience despite the grab bag of musical sources.
Sly's successful melt-down of formerly segregated genres and audiences with the above tunes and such positive power cuts as "Stand", "Everybody Is A Star" and "I Want to Take You Higher" helped pave the way for the funk, glam and disco of future decades. For the time being, the body-bending, sing-along impact of his hits got him booked at the Woodstock and Monterey festivals and at Bill Graham's Fillmores East and West.
http://www.there1.com/sly.html