LONDON - SEPTEMBER 14: Joni Mitchell performs live on stage at Wembley Stadium, London on 14th September 1974. (Photo by Gijsbert Hanekroot/Redferns)
LONDON - SEPTEMBER 14: Joni Mitchell performs live on stage at Wembley Stadium, London on 14th September 1974. (Photo by Gijsbert Hanekroot/Redferns)