Badfinger lip-sync performance of a song from the film The Magic Christian. Their first big hit, written and produced by Paul McCartney. Band known for No Matter What, Without You, Day After Day and Baby Blue.
Power Pop originators - Raspberries, Jellyfish, Big Star all followed. They opened the door for pop music again after the blues revival of 1969 killed off a lot of melodicism. With proper handling could have been huge.