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
The Supremes Supremes had a mostly white fanbase, while the Temptations a mostly black fanbase. By 1969, the label began plans for a Diana Ross solo career. A number of candidates—most notably Syreeta Wright—were considered to replace Ross. After seeing 24-year-old Jean Terrell perform with her brother Ernie in Florida, Berry Gordy decided on Ross' replacement. Terrell was signed to Motown and began recording the first post-Ross Supremes songs with Wilson and Birdsong during the day, while Wilson and Birdsong toured with Ross at night. At the same time, Ross began to make her first solo recordings. In November 1969, Ross' solo