Joni Mitchell has announced plans to release a new live album of her surprise appearance at this year’s Newport Folk Festival, which was her first full live performance since 2002. Speaking to Elton John in her Los Angeles home on his Apple Music show Rocket Hour, Mitchell admitted how she “didn’t have any” rehearsal time prior to her Newport set, expanding: “And I couldn’t sing the key. I’ve become an alto, I’m not a soprano anymore, so I couldn’t sing the song. And I thought people might feel lighted that if I just played the guitar part but I like the guitar part to that song. So anyway, it was very well received, much to my delight.”