The Supremes performing on "The Ed Sullivan Show" on December 21, 1969. The Supremes without Ross made their final appearance altogether on "Ed Sullivan" on February 15, 1970. Diana Ross & the Supremes gave their final performance on January 14, 1970 at the Frontier Hotel in Las Vegas. At the final performance, the replacement for Diana Ross, Jean Terrell, was introduced. According to Mary Wilson, after this performance, Berry Gordy wanted to replace Terrell with Syreeta Wright. Wilson refused, leading to Gordy stating that he was washing his hands of the group thereafter. This claim is also made by Mark Ribowsky. After
The Supremes career was publicly announced. "Someday We'll Be Together" was recorded with the intent of releasing it as the first solo single for Diana Ross. Desiring a final Supremes number-one record, Gordy instead had the song released as a Diana Ross & the Supremes single, despite the fact that neither Wilson nor Birdsong sang on the record. "Someday We'll Be Together" hit number one on the American pop charts, becoming not only the Supremes' 12th and final number-one hit, but also the final number-one hit of the 1960s. This single also would mark the Supremes' final television appearance together with Ross,