Carly Simon writing memoir about Jacqueline Kennedy Onassis.

Farrar, Straus and Giroux announced Monday that Simon’s “Touched by the Sun” was scheduled for Oct. 22. According to the publisher, Simon and Onassis met at a summer party on Martha’s Vineyard and began an “improbable, but lasting friendship.” Simon, best known for such songs as “You’re So Vain” and “The Spy Who Loved Me,” said in a statement that Onassis became everything from a “protective mother figure” to a “mischievous pal.” Onassis died in 1994.

Simon has written a previous memoir, “Boys In the Trees.”