Joni Mitchell
Mitchell had romantic relationships with Stephen Stills and David Crosby, both of the band Crosby, Stills & Nash. She also did artwork for one of their album covers. She was scheduled to appear at the Woodstock Festival, as CSN was (joined by Neil Young), but she had to cancel. Her song "Woodstock" still became a hit for CSN, and summed up for many people the meaning of the festival.