Graham Nash recalls in an ABC News Radio interview one his favorite moments from Woodstock, a performance of CSNY’s “Guinevere” sung by him and fellow bandmate David Crosby. Kickstarting their career, Crosby, Stills, Nash & Young, performed at Woodstock at 3AM on the 18th, and was the group's second concert ever. 📸: Getty Images. #PeaceAndLove #Woodstock #MusicFestivals #CountercultureMovement #MakeLoveNotWar #WoodstockFestival #History