The music world is in mourning today after Mary Wilson, who was a founding member of The Supremes, died on Monday night. She was 76 years-old.

Wilson’s death was confirmed to Entertainment Tonight by her longtime friend and publicist Jay Schwartz, who said she died suddenly and unexpectedly at her home in Henderson, Nevada. No cause of death has been given at this time.

Wilson rose to fame in the 1960s alongside Diana Ross and the late Florence Ballard in the Motown band The Supremes. Some of their biggest hits included “Where Did Our Love Go”, “Baby Love”, “Come See About Me”, “Stop! In the Name of Love” and “Back in My Arms Again.” Ross took to Twitter on Tuesday morning to honor Wilson after learning of her passing.

“I just woke up to this news , my condolences to you Mary’s family, I am reminded that each day is a gift, I have so many wonderful memories of our time together ‘The Supremes’ will live on in our hearts,” Ross said.

I just woke up to this news , my condolences to you Mary's family ,I am reminded that each day is a gift ,I have so many wonderful memories of our time together "The Supremes " will live on ,in our hearts 💕

— Ms. Ross (@DianaRoss) February 9, 2021

Berry Gordy, the founder of Motown, has spoken out to pay tribute to Wilson.

“I was extremely shocked and saddened to hear of the passing of a major member of the Motown family, Mary Wilson of the Supremes,” Gordy said. “The Supremes were always known as the “sweethearts of Motown.”  Mary, along with Diana Ross and Florence Ballard, came to Motown in the early 1960’s.  After an unprecedented string of number one hits, television and nightclub bookings, they opened doors for themselves, the other Motown acts, and many, many others.”

“I was always proud of Mary. She was quite a star in her own right and over the years continued to work hard to boost the legacy of the Supremes,” he added. “Mary Wilson was extremely special to me. She was a trailblazer, a diva and will be deeply missed.”

When Wilson was not performing, she was a motivational speaker who acted as an advocate for social change.

“Wilson used her fame and flair to promote a diversity of humanitarian efforts including ending hunger, raising HIV/AIDS awareness and encouraging world peace,” her publicist told CNN.

Wilson is survived by her daughter Turkessa, her son, Pedro Antonio Jr., as well as 10 grandchildren and one great-granddaughter.