Harper Lee dead: Celebrities react to the ‘To Kill a Mockingbird’ author’s passing

“To Kill a Mockingbird” author Harper Lee died on Feb. 19, 2016. She was 89 years old.

Celebrities, politicians, writers and others expressed sadness over the passing of the acclaimed author.

Piers Morgan called the 1960 book “one of the greatest books ever written.” Katie Couric called it “a gift to us all.”

Scroll through to see how celebrities are honoring and mourning the beloved author.