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 weight, and alcoholism, Florence Ballard was fired from the Supremes by Gordy in July 1967, hiring Cindy Birdsong from Patti LaBelle and the Blue-Bells as Ballard's replacement. Gordy renamed the group "Diana Ross & the Supremes", making it easier to charge a larger performance fee for a solo star and a backing group, as it did for other renamed Motown groups. Gordy initially considered Ross leaving the Supremes for a solo career in 1966 but changed his mind because the group's success was still too significant for Ross to pursue solo obligations. Ross remained with the Supremes until early 1970.