An allegedly drunk Chrissie Hynde physically attacked Carly Simon at a Joni Mitchell club performance at The Fez in NYC in 1995. The story was subsequently minimized in the press, but a friend of mine (who was Natalie Merchant's guitarist at the time) who attended the show said it was true and actually a bit worse than reported - with Chrissie grabbing Carly around the neck, pummeling her to the floor and shouting, "That's a REAL artist up there!" (referring to Joni)
https://www.mtv.com/news/504860/cat-...mitchell-show/