Singer Carly Simon loses both sisters in same week – composer Lucy and opera singer Joanna

Carly Simon in Martha's Vineyard, Massachusetts, 1981. The singer lost both her sisters this week – Broadway composer Lucy Simon died of breast cancer Thursday at age 82, and former opera singer Joanna Simon, 84, lost her battle with thyroid cancer the day before. – Photo: Lynn Goldsmith/Zuma Press/TNS

Singer-songwriter Carly Simon is mourning the loss of her two sisters this week.

Broadway composer Lucy Simon died of breast cancer Thursday at age 82, and former opera singer Joanna Simon, 84, lost her battle with thyroid cancer the day before.