2. Johnny Depp - Little Hall's Pond Cay, $3.6 Million
After spotting Little Hall's Pond Cay in Bahama while shooting Pirates of the Caribbean, Johnny Depp fell in love with the island. Fun fact, it was reportedly Marlon Brando who taught him the ins and outs of how to buy an island. After completing his investment, Johnny Depp named the island's six beaches after his children and former partner, Vanessa Paradis. Though there are a scattering of houses across the island, you won’t have the chance to book a vacation there, as it's not open to the public.