Joanna, Carly, and Lucy Simon pose for a photograph before their concert May 12, 1982 in New York City.Yvonne Hemsey

source:getty images

Musician Carly Simon and sisters Lucy Simon and Joanna Simon in 1994.Ron Galella, Ltd. / Ron Galella Collection

source:PINTREST

“I am filled with sorrow to speak about the passing of Joanna and Lucy Simon,” the singer wrote in a statement shared via email with TODAY.

“Their loss will be long and haunting. As sad as this day is, it’s impossible to mourn them without celebrating their incredible lives that they lived.”

She continued, adding, “We were three sisters who not only took turns blazing trails and marking courses for one another,we were each others secret shares.

“I have no words to explain the feeling of suddenly being the only remaining direct offspring of Richard and Andrea Simon,” she wrote

“They touched everyone they knew and those of us they’ve left behind will be lucky and honored to carry their memories forward.”

Carly Simon signed-off her statement, adding the note, “With great and eternal love and respect.”

she contributed to the musical “On Cedar Street,” but had to step away from the project due to her battle with cancer