Diana Ross and Mary Wilson at The Motown Picnic 
Some rare footage of this beautiful moment, when all the Motown artists and friends got together to have fun at a picnic.
Mary Wilson was there with her then husband Pedro Ferrer, and Diana was also there with her daughter Rhonda.
Filmed and narrated by the late Weldon McDougal, one of Motown executives at the time.
From: "Motown: The DVD - The Definitive Performances"