In an exclusive new interview with Closer Weekly, Tom Selleck revealed that he's working on a new project at 73 years old. "I'm writing my autobiography," the Blue Bloods star told us.

And he'll be able to draw on a wealth of material — from being born in Detroit and being one of four children to being married for 30 years and becoming a TV icon.

tom selleck wife jillie — getty

Tom and his wife, Jillie.

"People have been asking me for years, and I'm finally going to do it. We're talking to publishers now," he told Closer.

For more on Tom Selleck, pick up the latest issue of Closer Weekly, on newsstands now — and be sure to sign up for our newsletter for more exclusive news!