In 1985, Herbie Hancock and Wynton Marsalis had a very public disagreement in a joint interview for Musician Magazine. It was very shortly after Wynton threw some serious shade on pop music...this is the story.
You'll find the full interview in the anthology 'Keeping Time: Readings in Jazz History', available here: https://www.amazon.ca/Keeping-Time-Readings-Jazz-History/dp/0195091728
Rockit (Herbie Hancock): https://www.youtube.com/watch?v=GHhD4PD75zY
Think of One (Wynton Marsalis): https://www.youtube.com/watch?v=6iB9bTBFEyU&list=PLvxWibFr0wiLu9cj9D8xj912x91LF-6mD (the album that won Wynton a grammy in 1985