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
Plaza Hotel (Las Vegas, New Mexico) of Las Vegas began to attract invalids suffering from pulmonary ailments, particularly tuberculosis, for which no other cure was known. By the 1890s many of the guests at the Plaza were convalescent victims of tuberculosis. The One Lung Club was organized at the hotel in the 1890s to provide social activities for the invalids that did not require exertion. The first reunion of Theodore Roosevelt’s Rough Riders was held at the Plaza Hotel in 1899. Roosevelt stayed at the hotel twice, and announced his presidential candidacy from Las Vegas. The hotel was used in many cowboy films, including Tom Mix