Someday We'll Be Together with Diana Ross singing lead on the 1960s decennial finale of "The Ed Sullivan Show" that aired live Sunday, December 21, 1969 on CBS. "Someday We'll Be Together" was the final number at Diana Ross & the Supremes' farewell concert on January 14, 1970 at the Frontier Hotel in Las Vegas. After the completion of the show, Jean Terrell was presented onstage to the audience as Diana Ross' replacement (alongside Wilson and Birdsong). Thus "Diana Ross & the Supremes" officially split apart, becoming "Diana Ross" (the solo act) and "The Supremes" (the group). Ross reunited with Wilson and Birdsong in
Diana Ross 1999, Ross and mega-tour promoter SFX (which later became LiveNation) began negotiations regarding a Diana Ross tour which would include a Supremes segment. During negotiations with Ross, the promoters considered the creation of a Supremes tour, instead. Ross agreed. As the tour's co-producer, Ross invited all living former Supremes to participate. Neither Jean Terrell nor late 1970s member Susaye Greene chose to participate. 70s Supremes Lynda Laurence and Scherrie Payne were then touring as Former Ladies of the Supremes. Ross contacted Mary Wilson and Cindy Birdsong, who then began negotiations with SFX. Negotiations with Wilson and Birdsong(who allowed Wilson to