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Summer Birthday Bikini Babes

By:Radar Staff

Jun. 29 2010, Published 7:42 a.m. ET

1. Ashley Tisdale: Turns 25 on July 2

2. Ashley Tisdale: Turns 25 on July 2

3. Blake Lively: The Gossip Girl turns 23 on August 25

4. Blake Lively: The Gossip Girl turns 23 on August 25

5. Blake Lively: The Gossip Girl turns 23 on August 25

6. Blake Lively: The Gossip Girl turns 23 on August 25

7. Blake Lively: The Gossip Girl turns 23 on August 25

8. Anna Kournikova: The Russian tennis hottie turned 29 on June 7

9. Anna Kournikova: The Russian tennis hottie turned 29 on June 7

10. Anna Kournikova: The Russian tennis hottie turned 29 on June 7

11. Anna Kournikova: The Russian tennis hottie turned 29 on June 7

12. Anna Kournikova: The Russian tennis hottie turned 29 on June 7

13. Ashley Tisdale: Turns 25 on July 2

14. Ashley Tisdale: Turns 25 on July 2

15. Ashley Tisdale: Turns 25 on July 2

16. Cameron Diaz: The blonde beach bunny turns 38 on August 30

17. Cameron Diaz: The blonde beach bunny turns 38 on August 30

18. Cameron Diaz: The blonde beach bunny turns 38 on August 30

19. Cameron Diaz: The blonde beach bunny turns 38 on August 30

20. Cameron Diaz: The blonde beach bunny turns 38 on August 30

21. Elizabeth Hurley: The English rose turned 45 on June 10

22. Elizabeth Hurley: The English rose turned 45 on June 10

23. Elizabeth Hurley: The English rose turned 45 on June 10

24. Elizabeth Hurley: The English rose turned 45 on June 10

25. Elizabeth Hurley: The English rose turned 45 on June 10

26. Courteney Cox: Celebrated her 46th birthday in June with pals including Jennifer Aniston

27. Courteney Cox: Celebrated her 46th birthday in June with pals including Jennifer Aniston

28. Courteney Cox: Celebrated her 46th birthday in June with pals including Jennifer Aniston

29. Courteney Cox: Celebrated her 46th birthday in June with pals including Jennifer Aniston

30. Courteney Cox: Celebrated her 46th birthday in June with pals including Jennifer Aniston

31. Jessica Simpson: Hits the 30 milestone on July 10

32. Jessica Simpson: Hits the 30 milestone on July 10

33. Jessica Simpson: Hits the 30 milestone on July 10

34. Jessica Simpson: Hits the 30 milestone on July 10

35. Jessica Simpson: Hits the 30 milestone on July 10

36. Lindsay Lohan: She will turn 24 on July 2

37. Lindsay Lohan: She will turn 24 on July 2

38. Lindsay Lohan: She will turn 24 on July 2

39. Lindsay Lohan: She will turn 24 on July 2

40. Lindsay Lohan: She will turn 24 on July 2

41. LeAnn Rimes: The country singer and actress marks her 28th birthday on August 28

42. LeAnn Rimes: The country singer and actress marks her 28th birthday on August 28

43. LeAnn Rimes: The country singer and actress marks her 28th birthday on August 28

44. LeAnn Rimes: The country singer and actress marks her 28th birthday on August 28

45. LeAnn Rimes: The country singer and actress marks her 28th birthday on August 28

46. Heidi Klum: The model and mom turned 37 on June 1 and accidentally found her present from Seal hidden in his closet

47. Heidi Klum: The model and mom turned 37 on June 1 and accidentally found her present from Seal hidden in his closet

48. Heidi Klum: The model and mom turned 37 on June 1 and accidentally found her present from Seal hidden in his closet

49. Heidi Klum: The model and mom turned 37 on June 1 and accidentally found her present from Seal hidden in his closet

50. Heidi Klum: The model and mom turned 37 on June 1 and accidentally found her present from Seal hidden in his closet

51. Jessica Lopez: The multi-talented superstar turns 41 on July 24

52. Jessica Lopez: The multi-talented superstar turns 41 on July 24

53. Jessica Lopez: The multi-talented superstar turns 41 on July 24

54. Jessica Lopez: The multi-talented superstar turns 41 on July 24

55. Jessica Lopez: The multi-talented superstar turns 41 on July 24