NEW YORK (KBCWtv) — Founding member of the 70’s disco girl group, ‘Sister Sledge,’ Joni Sledge has died at 60 years old. Joni was found dead at her Phoenix, Arizona home by a friend on Friday, March 10th, according to the group’s publicist, Biff Warren. Though she was not ill at the time, a cause of death was not yet determined.

NEW YORK, NY - JUNE 09: (L-R) Musicians Debbie Sledge, Joni Sledge, and Kim Sledge attend Songwriters Hall Of Fame 47th Annual Induction And Awards at Marriott Marquis Hotel on June 9, 2016 in New York City. (Photo by Gary Gershoff/Getty Images for Songwriters Hall Of Fame)

(L-R) Musicians Debbie Sledge, Joni Sledge and Kim Sledge (credit: Gary Gershoff/Getty Images)

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Sister Sledge is best known for the hit song “We Are Family” in 1979. The song celebrated their sisterhood, but naturally became an anthem that represented unity and female empowerment. The song was nominated for a GRAMMY and the album sold over a million copies.

Joni is survived by her son, her sisters and of course, her family.

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