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On Sundays, we dance!!! ?? #danceparty

A video posted by Giuliana Rancic (@giulianarancic) on

What better way to celebrate Sunday funday than with a dance party?!

E! News host Giuliana Rancic decided to wrap up her weekend by having some fun with one especially cute guy in her life—her 2-year-old son Duke Rancic. G posted a fun video clip on her Instagram account that shows Duke jumping around to the ultra-catchy hit "Uptown Funk" by Bruno Mars and Mark Ronson.

As he shows off his killer dance moves in the star's bedroom, Giuliana decides to get up and join in (because duh! How can anyone stay seated when that song is played?!).

"Dance party," Giuliana is heard yelling, and we can hear hubby Bill Rancic cheering them on behind the camera as G and Duke go at it.

The adorable video clip is just further proof that the couple's little tyke is growing up before our eyes.

"I gotta say, they're not so terrible," she said in October of her son's latest milestone after celebrating his second birthday on Aug. 29.

"He's been amazing so far and to be quite honest he's more mellow now than he was before because now he can communicate…he can tell us what he wants, what he doesn't want—it's chilled him out a lot...So far, we're really liking it. The older he gets, the better for us almost...And it's awesome to see him grow and learn new things every day."

Fans will get to learn a lot more about the Rancic family when Giuliana's book, Going Off Script: How I Survived a Crazy Childhood, Cancer and Clooney's 32 On-Screen Rejections, hits shelves April 7. Until then the host has given a little insight into the possibility of having another baby, telling Life & Style that she has only one frozen embryo left.

"This could be our last shot," Giuliana, 40, revealed. "We're keeping our fingers crossed that everything works out."