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
Allure Las Vegas adjacent property. Due to its location on the northside of Sahara Avenue which serves as the southern boundary of Las Vegas, Allure is the tallest building "within" Las Vegas city proper. In 1987, developer Andrew Fonfa purchased five acres on West Sahara Avenue, near the northern end of the Las Vegas Strip. At the time, Fonfa planned to build a hotel on the property, as he expected Circus Circus Enterprises to construct the Excalibur Hotel and Casino nearby, thus increasing tourism for the northern Las Vegas Strip. The Excalibur was ultimately built at the southern end of the Las Vegas