Mila Kunis and Ashton Kutcher Share an Uber With Princess Beatrice

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This was one star-studded cab ride!

New York City Uber driver David Capellan got quite the surprise when he picked up Mila Kunis and Ashton Kutcher along with their royal pal Princess Beatrice and her boyfriend Dave Clark. "I just met #Ashtonkutcher #Milakunis #princessbeatrice and #DaveClark we all had a crazy convo #lol #goodpeople #royalty #uber," he wrote.

Kunis was celebrating her 32nd birthday in NYC when the driver picked up the couples.

Kutcher is actually an investor of Uber and came to the company's defense last year when it was accused of investigating journalists. In June, he defended Uber again following New York City Mayor Bill de Blasio's push to limit the service's growth in the city.

WATCH: Mila Kunis Gets Ashton Kutcher's Sweet Love Note on the Red Carpet

This isn't the first time the foursome have hung out. In June 2013, Kunis and Kutcher were spotted on vacation with Princess Beatrice and her beau in St. Tropez. Kutcher reportedly met Clark in 2012 when he purchased a space flight on Virgin Galactic, where Clark worked.

WATCH: Mila Kunis Glows in First Post-Honeymoon Sighting After Marrying Ashton Kutcher

Kunis and Kutcher, 37, have been celebrating all summer! ET confirmed that after Wyatt Isabelle's parents got secretly married over Fourth of July weekend, the newlyweds embarked on their honeymoon to Yosemite National Park in a rustic RV.

Ubers and RVs?! These A-listers seem very down to earth.

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