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 at the Copa Ballard was angered that her only solo number, "People", was now to be led by Supremes lead singer Diana Ross, while Ross herself complained about the group's staging and bristled under Gordy's criticisms of their performances. Nevertheless, the Copa engagement was a success, paving the way for several other Motown stars, including The Temptations, Marvin Gaye, Martha & the Vandellas and Smokey Robinson & the Miracles to secure play dates at the Copa. After the success of their initial Copa engagement, Mary Wilson noted that the Supremes were "welcome to play any club in the world" The group had several