They're Friends?! 23 Celebrity Pals That Might Surprise You

It's not every day that celebrities become friends with royals, which is why it was so surprising to see Mila Kunis and Ashton Kutcher vacationing in Saint-Tropez with Princess Beatrice and her then-boyfriend, Dave Clark, in June 2013. Ashton reportedly met Dave in 2012 after he bought a space flight on Virgin Galactic, where Dave works in astronaut relations. The couples were then introduced to each other and went out on a double date in London before their tropical trip.