There was no way that Beyoncé wasn't going to be on this list, given that Shakira's on it! Shakira may be one of the world's biggest pop divas, but it's Queen Bee who holds the crown, and everybody knows it. When you're the Queen, you don't pay for your own things - other people do that for you. The $20m island she owns off the coast of Florida is tiny at only 12.5 acres, but it was just a small token of her husband Jay-Z's appreciation on her 29th birthday.
Don't feel bad for the music power couple only having a tiny island though - they also own another one in the Bahamas! It was Jay-Z who was shelling out a second time when they bought it, and this time it was an anniversary present. He's going to have to start thinking about new gift ideas, because if he doesn't they'll very shortly have fifty islands and no money left!