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Singer Katy Perry performs on stage. (Kevin Winter/Getty Images) Dec 1, 2010

Contents: 1. Katy Perry 2. Katy Perry sings 3. Katy Perry 4. Katy Perry 5. Katy Perry 6. Katy Perry 7. Katy Perry in concert 8. Katy Perry 9. Singer Katy Perry performs 10. Katy Perry 11. Katy Perry 12. Katy Perry 13. Katy Perry 14. Katy Perry 15. Katy Perry on stage 16. Katy Perry 17. Katy Perry 18. Rehearsal: Katy Perry 19. Rehearsal: Katy Perry 20. Rehearsal: Katy Perry 21. Rehearsal: Katy Perry 22. Rehearsal: Katy Perry 23. Rehearsal: Katy Perry 24. Rehearsal: Katy Perry 25. Rehearsal: Katy Perry 26. Rehearsal: Katy Perry 27. Rehearsal: Katy Perry 28. Rehearsal: Katy Perry 29. Rehearsal: Katy Perry 30. Rehearsal: Katy Perry 31. Rehearsal: Katy Perry 32. Rehearsal: Katy Perry 33. Rehearsal: Katy Perry 34. Rehearsal: Katy Perry 35. Rehearsal: Katy Perry 36. Rehearsal: Katy Perry 37. Rehearsal: Katy Perry 38. Rehearsal: Katy Perry 39. Rehearsal: Katy Perry 40. Rehearsal: Katy Perry 41. Rehearsal: Katy Perry 42. Top photos: More galleries

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