Frank Zappa in his Los Angeles home with his dad, Francis, his mom, Rosemarie, and his cat in 1970.

The Jefferson Airplanes Grace Slick poses with her mother, Virginia Wing, in the living room of the home where she grew up in Palo Alto, California in 1970.

In 1970 Rose Clapp shows off her tea service and Eric Clapton, her rock-god guitarist grandson, Surrey, England.

The former Reggie Dwight, later known as Elton John, laughs with his mom Sheila Fairebrother and her husband Fred, whom he affectionately called "Derf," Fred spelled backwards, in their suburban London apartment in 1970.

David Crosby with his father, 1970.

Ginger Baker, the Cream and Blind Faith drummer, flashes a rare smile with his mother Ruby Streatfield inside her rowhouse in Bexley, outside London, in 1970.

Joe Cocker with his mother, 1970.

Richie Havens with his parents, Brooklyn in 1970.

The Jackson 5 pose with their parents in Encino, Calif., in 1970.

Scottish folk musician Donovan and his parents, Donald and Winifred Leitch, England in 1970.