In Randy's book, it was stated that on Nov. 3-1969 Motown released the offical press statement that Diana was leaving the Supremes in 1970

But Berry wanted her out with a number one record. Was it predetermined that "Someday" was going to be an instant hit, because it did not hit the charts until Nov. 8 but it debut at #50 then 32, then #20 and then 11 and upward. If it had died at #20 would Ms. Ross still be let out of the Supremes, at this time a thing she had called a trap by this time since she wanted out so badly, infact she wanted the group off her shoulder in 1967. Mary and Cindy were already rehearsing with Jean months prior to Someday's release. What gives here, i do remember buying the single in November just before Thanksgiving and then the album Cream of the Crop in early December. i knew those girls in the bck did not sound like Mary and Cindy, but nothing was said about, however i really didn't know Cindy's voice either except for the tv shows.