Certainly one of the most outrageous collaborations at the short-lived Fillmore East venue in New York City, NY was that of Frank Zappa and the Mothers of Invention with John Lennon and Yoko Ono.Watch Frank Zappa Destroy Hosts Of CNN’s Crossfire In Censorship DebateWhat started as an innocuous invitation during Zappa’s encore on June 5th, 1971, turned into pure musical mayhem, as Lennon and Ono were somewhat out of their element for the performance. After a relatively straightforward rendition of the blues standard, “Baby Please Don’t Go”, the group circled into an original track called “Scumbag”, and all hell broke loose.Check out the raw footage below:Zappa was recording a live album for the show, so footage from the performance has existed (albeit in low quality) for the past forty years. However, there was controversy, as Lennon’s label took the music and used it to commercialize a dual studio/live album project called Sometime In New York City. The band was unhappy about how the tracks were mislabeled and the band misrepresented.Many years later, Zappa spoke about the incident:What a story! Despite all of that, it’s still quite the sight to see John Lennon and Frank Zappa share the stage.