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    Giuliana & Bill Rancic's Son Duke Turns 1: See His Adorable First Year in Photos

    Duke Rancic Birthday, Giuliana Rancic, Bill Rancic Courtesy: Giuliana Rancic

    Happy birthday, Edward Duke Rancic!

    Bill and Giuliana Rancic's bundle of joy, who we've come to know as Duke over the past year, turns 1 today—and the celebration continues!

    The big (yet still so adorably little) boy's parents threw him a Western-themed birthday bash in Malibu a couple weeks ago to ensure that all of their L.A.-area friends would get to celebrate the momentous occasion, but Giuliana and Bill are spending Duke's actual birthday with family and pals in Chicago.

    PHOTOS: Fun famous family pics

    The Windy City party won't include a mechanical bull (well, as far as we know), but Giuliana previously revealed that they would be spending time at Bill's sister's lake house.

    "We're going to go tubing and water skiing, and when I say 'we'—Duke and Bill. I will not be doing any of those things," a smiling Giuliana told us at the Huggies Snug & Dry Baby2Baby Summer Birthday Event.

    Duke Rancic Birthday, Giuliana Rancic, Bill Rancic Courtesy: Giuliana Rancic

    Also in honor of their son's big 0-1, Giuliana asked Duke's birthday party guests to bring presents for Baby2Baby, which supplies moms in need with toys and child care supplies.

    "I wanted to instill some good values in Duke off the bat," she said.

    Meanwhile, the family also stays plenty busy and we've always appreciated how, over the last 12 months, mom and dad have been so willing to share some of their baby boy's most precious moments with the rest of us.

    So, in honor of Duke's milestone birthday, check out some of their best pics from his first year.

    For more birthday scoop from Giuliana, tune into E! News tonight at 7 p.m. & 11:30 p.m.

    PHOTOS: Inside Giuliana & Bill's Baby Album: Check out the cutest pics of Edward Duke Rancic