Credit: FameFlynet; Everett Collection; Splash News; Ramey

The bikini turned 66 this week! 'Tis true: It's been more than six decades since French designer Louis Réard introduced the two-piece to the world—read more about the history at—and it's been a beach scene-stealer ever since. We've rounded up tons of information about the summer staple that Taylor Swift, Halle Berry, Kim Kardashian, and Kate Hudson wear so well, including 48 amazing celebrity bikini photos, which you can see in the gallery now! Plus, check out our roundup below for all of our comprehensive two-piece coverage.