https://www.youtube.com/watch?v=pHi2pB_lXloSteve on a cell in Brooklyn wrote:
For me it's Joni Mitchell although that's more as an artist than pure singing ability. Same with Neil Young.
Didn't see Gino Vannelli's name mentioned and, considering some that were, I'd say he deserves a mention.
Joni on Dick Cavett Show
The Day after she penned "Woodstock" for her friends CSN&Y, cuz she
couldn't make the gig, watched on it TV
Yes that's Grace Slick