Diane Keaton's friend and songwriter, Carole Bayer Sager, tells PEOPLE the star had an 'almost childlike' energy while recording her first-ever solo single, 'First Christmas.'

Diane Keaton, the Oscar-winning "Annie Hall" actress and "The Godfather" star, is dead at 79, according to reports.

The Oscar-winning actress, who died at age 79, was beloved for her big-screen talents and adored for her inimitable red carpet style. Here are some of her best looks over the years.

Steve Martin is remembering the time he spent working with Diane Keaton before they both became Hollywood stars. The ‘Father of the Bride’ actor, 80, shared a playbill from their college production of 'Carousel' on Instagram following Keaton’s death on Oct.

First Wives Club co-star Goldie Hawn says Diane Keaton left "memories beyond imagination" following her death aged 79.

Allen reminisced about his former muse, romantic partner, and lifetime friend, who died on October 11, aged 79.

"A few days ago the world was a place that included Diane Keaton," the controversial filmmaker wrote. "Now it's a world that does not"

Keaton battled skin cancer years before she died. Here’s what we know about her health, which a friend said ‘declined very suddenly’ during her final months.

The film icon and Oscar winner died on October 11, leaving behind a filmography of unmatched depth, surprise, and nuance.

She won the Oscar for her role in Woody Allen’s rom-com “Annie Hall” in 1977 and was nominated three other times.

Diane Keaton‘s final Instagram post has gone viral in the wake of her death. Keaton’s demise sent shockwaves across the film industry, with many actors and celebrities sharing heartfelt tributes to the late icon.