Hollywood is in mourning after the death of legendary actress Diane Keaton.

The Oscar winner, whose acting career goes back to the 1960s, has reportedly died at age 79, according t`o People and The New York Times.

The Los Angeles native worked with some of Hollywood's biggest stars and they're paying tribute, including her "Book Club" costar Mary Steenburgen.

"Diane was magic. There was no one, nor will there ever be, anyone like her. I loved her and felt blessed to be her friend. My love to her family. What a wonder she was," Steenburgen wrote in a statement shared with USA TODAY.

Diane Keaton dies: The Oscar-winning 'Annie Hall' and 'Godfather' actress was 79