Probably one of the many beauty pageants, he owned. There has been many accusations of him just walking in on young girls getting dressed.
I remember a comedian that had a joke similar to this. He had a volunteer come on stage, handed them a piece of paper and ask them to rip it in half. Then he told them "continue to rip it in half and eventually you'll hear a large Bang".
They don't have to. The person blackmailing, has the list. Implicate them and have pictures or video.
I'm getting old and listen to my music too loud. Waxwing calls are so high pitched I can barely hear them.
But the boys of summer have gone...