Giuliana Rancic Instagram

Instagram

It's a special day for Baby Duke!

Bill Rancic and Giuliana Rancic's son is turning three Saturday and as you can imagine, the birthday boy is receiving plenty of love from his family and friends.

Before enjoying a party in Chicago, Duke was treated to a special post on Instagram from his proud mom.

"My little boy today on his 3rd birthday. Thank you for teaching me what life is really about," she wrote. "Even though you're now a little boy, you will always be my baby. Happy Birthday, Duke  ❤."

Papa Bill added, "Happy 3rd Birthday Mr. Duke!!!!"

Giuliana Rancic Instagram

Instagram

Based on a few memorable photos, fans are quickly able to tell that the family enjoyed quite the busy (and exhausting) day! In addition to an inflatable bounce house, it appears Duke was treated to a party filled with balloons, stuffed animals and plenty of family time.

In fact, the man of the hour had to take a serious nap after all of his festivities.

"Sign of a really good party," Giuliana wrote on Instagram. "#Birthdayboy #PartyAnimal #NapTime."

While G is spending more family time in Chicago with her extended family, loyal fans will be happy to know the author and restaurateur will be back on E! sooner rather than later. In fact, the Fashion Police team will return Monday night to critique the hits (and misses) from the MTV Video Music Awards. Prepare yourselves Hollywood!

Don't miss the highly-anticipated return of Fashion Police this Monday for the VMA special at 8/7c featuring hosts Melissa Rivers, Giuliana Rancic, Brad Goreski with special guests NeNe Leakes and Margaret Cho! 

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