Neil Sedaka Plays Chopin on I've Got a Secret!
https://www.youtube.com/watch?v=tS8UfwApS9Q
https://www.youtube.com/watch?v=tS8UfwApS9Q


@spamless Dallman, I had to search further:
In 1966, American pop singer-songwriter
Neil Sedaka
was accepted into the prestigious Tchaikovsky Piano Competition in Moscow, but was ultimately prevented from competing by Soviet authorities. Officials objected to his background in popular, "capitalistic" rock-and-roll music, despite his intense classical training, leading to his disqualification.