04/17/2013 11:20 EDT

Hilary Duff Not Your Average Mom: 'Lizzie McGuire' Star Rocks Leather Pants At Book Signing (PHOTOS)

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LA VERNE, CA - APRIL 16: Hilary Duff signs copies of her book 'Elixir' at Mrs. Nelson's Toy And Book Shop on April 16, 2013 in La Verne, California. (Photo by Jason LaVeris/FilmMagic)

Hilary Duff is officially one of the hottest moms in Hollywood!

The "Lizzie McGuire" star, who has a one-year-old son Luca, worked it in a pair of tight leather pants and a matching sweater while promoting her latest book (yes, Lizzie writes books!) True in California yesterday.

In true Hollywood style, the 25-year-old hottie accessorized with a killer pair of nude heels, an eye-catching red fedora and her gigantic diamond wedding band. (Duff married NHL player Mike Comrie in 2010.)

Books are good business for Duff these days – True is the third and final installment of her Elixir trilogy which has become a New York Times bestseller.

Duff isn't the only celeb with a book deal; fellow actress Jessica Alba of "Fantastic Four" fame released her first book The Honest Life earlier this year and Gwyneth Paltrow is busy promoting her second cookbook "It's All Good."

Did we mention that they all look fantastic?

For her post-baby workout regime, Duff credits pilates for getting back into fighting shape and fitting into her favourite pair of shorts.

Lookin' good, Hilary!

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