I'm always amazed at how much it seemed like the Supremes turned into women practically overnight when Cindy came into the group. It's so subtle but noticeable. I watched DMF doing the Happening on Sullivan and then watched DMC doing Reflections on Hollywood Palace just a few months later and it's crazy how more mature they seem.

I don't know if it has to do with Cindy being older than the original trio or what but she added a sense of womanhood to the group.