F ifty-five summers ago, a riot broke out in Chicago’s Grant Park, where Sly and the Family Stone was booked to play a concert. Sly was on en route, but the crowd, fearing that

Forever No. 1 is a Billboard series that pays special tribute to the recently deceased artists who achieved the highest honor our charts have to offer — a Billboard Hot 100 No. 1 single — by taking an extended look back at the chart-topping songs that made them part of this exclusive club.