Looking to spot A-List celebrities on your summer vacation? Orbitz and OK! Magazine are excited to reveal the world's 10 most exclusive celebrity hotels* where stars like Katy Perry, Ashton Kutcher, and Justin Bieber escape for the ultimate in luxurious vacations.
10. Oahu, Hawaii - Turtle Bay Resort
Celebrity Sightings: The cast of "Lost," Lauren Conrad
7. Costa Rica - Four Seasons Costa Rica
Celebrity Sightings: Andy Roddick, Brooklyn Decker
6. Vegas - Caesar's Palace
Celebrity Sightings: Kristin Cavallari, Holly Madison, Kardashian sisters