NEW YORK — Maggie Roche, the folk-rock singer-songwriter who since the mid-1970s had performed and recorded as a trio and in pairs with her two sisters, has died.

Roche died of cancer, according to a statement posted online Saturday by her sister and bandmate Suzzy Roche. She was 65.

Growing up in Park Ridge, N.J., eldest sister Maggie formed a duo with middle sister Terre, and while touring, they caught the attention of Paul Simon, who brought them in as backup singers for his hit 1973 album, “There Goes Rhymin’ Simon.”

In 1975, they released an album of their own. Shortly after that, youngest sister Suzzy joined to form The Roches trio. In 1979, they released the well-received “The Roches,” the first of their dozen albums as a trio, and were booked on “Saturday Night Live.”