Diane Keaton’s famous friends took to social media to mourn her death at the age of 79.

The iconic actress died in California, a family spokesperson told People Saturday. The cause of death is unclear.

Keaton’s “The First Wives Club” co-star Bette Midler said she was “unbearably sad” at the news in an Instagram post.

“The brilliant, beautiful, extraordinary Diane Keaton has died. I cannot tell you how unbearably sad this makes me,” Midler wrote.

“She was hilarious, a complete original, and completely without guile, or any of the competitiveness one would have expected from such a star. What you saw was who she was…oh, la, lala!,” she continued.

Kimberly Williams-Paisley, who played Keaton’s daughter in “Father of the Bride” and the film’s sequel, shared a screenshot of the two from

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