When John Lennon first saw The Sparks on ToTP he called Ringo Starr and said ‘I have just seen “Marc Bolan playing with Adolf Hitler”
An amusing article / interview with the Sparks. https://www.theguardian.com/music/2021/jul/16/we-have-a-hostility-to-being-boring-sparks-still-flying-in-their-70s