She was a childhood star and teen pop star before she became a rock star with FLeetwood Mac. She was with Fleetwood Mac before they became famous in the states. And she was one of their three great song writers and vocalists. You heard less about her because she lived in Briton, because she was first a star in England, and because she divorced her band member husband wishing not to see him for a long while. But she, personally was a source of many big hits in the seventies and eighties.
I have respect for her as a songwriter. Unfortunately, for her, she was not very attractive looking. That really hurt her in an industry where looks were becoming more and more important in the age of video.