Shelly Fabares and Paul Petersen played sister and brother on the “Donna Reed Show.” Each also had recording careers. His biggest hit came in 1962 with “My Dad (Now Here is a Man).” Her biggest hit came the same year when she hit # 1 on the Billboard Hot 100 with “Johnny Angel.” In 1962 they teamed up for a duet with the single, “What Did They Do Before Rock N Roll.” Released on Colpix records, the 45 is worth up to $40.00, but the picture sleeve is among the most collectible, valued up to $3,000.00 today