Mary Wilson, longest-reigning original Supreme, dies at 76

FILE - In this Oct. 8, 1964 file photo, The Supremes, from left, Florence Ballard, Mary Wilson and Diana Ross, perform during a reception for them in a hotel, in London. Wilson, the longest-reigning original Supreme, has died at 76 years old. Publicist Jay Schwartz says Wilson died Monday, Feb. 8, 2021, at her home in Las Vegas and that the cause was not immediately clear. (AP Photo/Bob Dear, File)

FILE - Mary Wilson, founding member of The Supremes, appears during a portrait session at Capitol Records in Los Angeles on June 12, 2014. Wilson, the longest-reigning original Supreme, has died at 76 years old. Publicist Jay Schwartz says Wilson died Monday night, Feb. 8, 2021, at her home in Las Vegas and that the cause was not immediately clear. Wilson, Diana Ross and Florence Ballard made up the first successful configuration of The Supremes. (Photo by Casey Curry/Invision/AP)

FILE - Mary Wilson, founding member of The Supremes, appears during a portrait session at Capitol Records in Los Angeles on June 12, 2014. Wilson, the longest-reigning original Supreme, has died at 76 years old. Publicist Jay Schwartz says Wilson died Monday night, Feb. 8, 2021, at her home in Las Vegas and that the cause was not immediately clear. Wilson, Diana Ross and Florence Ballard made up the first successful configuration of The Supremes. (Photo by Casey Curry/Invision/AP, File)

FILE - Mary Wilson, founding member of The Supremes, appears during a portrait session at Capitol Records in Los Angeles on June 12, 2014. Wilson, the longest-reigning original Supreme, has died at 76 years old. Publicist Jay Schwartz says Wilson died Monday night, Feb. 8, 2021, at her home in Las Vegas and that the cause was not immediately clear. Wilson, Diana Ross and Florence Ballard made up the first successful configuration of The Supremes. (Photo by Casey Curry/Invision/AP, File)

FILE - Mary Wilson, founding member of The Supremes, appears during a portrait session at Capitol Records in Los Angeles on June 12, 2014. Wilson, the longest-reigning original Supreme, has died at 76 years old. Publicist Jay Schwartz says Wilson died Monday night, Feb. 8, 2021, at her home in Las Vegas and that the cause was not immediately clear. Wilson, Diana Ross and Florence Ballard made up the first successful configuration of The Supremes. (Photo by Casey Curry/Invision/AP, File)

FILE - In this April 4, 2019, file photo, Mary Wilson, a former member of The Supremes, is escorted after singing the national anthem before a baseball game between the Detroit Tigers and the Kansas City Royals in Detroit. Wilson died in Las Vegas, publicist Jay Schwartz told KABC-TV. When she died and other details weren’t immediately clear. She was 76. (AP Photo/Carlos Osorio, File)

FILE - In this March 11, 1994 file photo, Mary Wilson, former member of The Supremes, poses at the dedication of the 2,026th star on the Hollywood Walk of Fame honoring The Supremes in Hollywood, Calif. Wilson, the longest-reigning original Supreme, has died at 76 years old. Publicist Jay Schwartz says Wilson died Monday, Feb. 8, 2021, at her home in Las Vegas and that the cause was not immediately clear. (AP Photo/Brennan Linsley, File)

FILE- This Aug. 19, 1966 file photo shows The Supremes, with Diana Ross, lead singer on top of the slide, while Mary Wilson climbs the stairs and Florence Ballard stands underneath. Wilson, the longest-reigning original Supreme, has died at 76 years old. Publicist Jay Schwartz says Wilson died Monday, Feb. 8, 2021, at her home in Las Vegas and that the cause was not immediately clear. (AP Photo, file)