Music artists guest starring on television

Your memory is correct; she commissioned (or maybe just suggested, I can’t recall) Paul to do a documentary about wind. She played herself.

I can’t recall what show my mother was watching several years ago while I was reading in the same room, but it featured a scene of a group of forty-something women reminiscing at a reunion. Only when one of them sat down at a piano and began to sing did I recognize Carole King.