i've shared lots of info from my Supremes Excel Sheet - their itinerary, their chart action, etc.

well this is just fascinating!! a guy took all of the pop charting singles from the Supremes vs MRATV vs the Marvelettes. it goes week by week and you see each release, how it climbed the charts, how it compares with the other groups and when it dropped off

https://www.youtube.com/watch?v=9hOLdCePhf0