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
Diana Ross was to publicly introduce a new Motown recording act. Though she herself did not claim their discovery, Motown's publicity department credited Ross with having discovered the Jackson 5. Ross would introduce the group during several public events, including "The Hollywood Palace". In November, Ross confirmed a split from the Supremes in "Billboard". Ross' presumed first solo recording, "Someday We'll Be Together", was eventually released as a Supremes recording and became the group's final number-one hit on the Hot 100. It was also the final number-one "Billboard" Hot 100 single of the 1960s. Ross made her final appearance with the Supremes