American singer-songwriter Harry Chapin (1942 – 1981) plays the guitar and sings on stage during a performance, 1970s. (Photo by Hulton Archive/Getty Images)
circa 1975: American disco singer Vicki Sue Robinson (1945 – 2000) performing in concert. Robinson is wearing a dress covered in diamond studs. (Photo by Fotos International/Getty Images)
Pop group the Bee Gees posed on a street in London in 1967. Members of the band are, from left, Colin Petersen, Maurice Gibb (1949-2003), Barry Gibb, Vince Melouney and Robin Gibb (1949-2012). (Photo by Ivan Keeman/Redferns)
