1. Eminem is 50
And here he is at the beginning of his career:
2. Kristen Wiig is 50
And here she is at the beginning of her career:
3. Mark Hoppus is 50
And here he is at the beginning of his career:
4. Geri Halliwell is 51
And here she is at the beginning of her career:
5. Seth Green is 49
And here he is at the beginning of his career:
6. Kevin Richardson from Backstreet Boys is 51
And here he is at the beginning of his career:
7. Howie D. is the next oldest Backstreet member at 50
And here he is at the beginning of his career:
8. Steve from Blue's Clues is 49
And here he is at the beginning of his career:
9. Gabrielle Union is 50
And here she is at the beginning of her career:
10. Alfonso Ribeiro is 52
And here he is at the beginning of his career:
11. Juliette Lewis is 50
And here she is at the beginning of her career:
12. Lil Jon is 52
And here he is at the beginning of his career:
13. Johnny Knoxville is 52
And here he is at the beginning of his career:
14. Jim Parsons is 50
And here he is at the beginning of his career:
15. Snoop Dogg is 51
And here he is at the beginning of his career:
16. Jenny McCarthy is 50
And here she is at the beginning of her career:
17. Mario Lopez turns 50 next month
And here he is at the beginning of his career:
18. Marlon Wayans is 51
And here he is at the beginning of his career:
19. Billie Joe Armstrong is 51
And here he is at the beginning of his career:
20. Adam Scott is 50
And here he is at the beginning of his career:
21. Ben Affleck is 51
And here he is at the beginning of his career:
22. Shaq is 51
And here he is at the beginning of his career:
23. Kate Beckinsale is 50
And here she is at the beginning of her career:
24. Cameron Diaz is 51
And here she is at the beginning of her career:
25. Dwayne Johnson is 51
And here he is at the beginning of his career:
26. Neil Patrick Harris is 50
And here he is at the beginning of his career:
27. Brendan Fraser is 53
And here he is at the beginning of his career:
28. Neve Campbell turns 50 next week
And here she is at the beginning of her career:
29. Jack McBrayer is 50
And here he is at the beginning of his career:
30. Nick Lachey is 49
And here he is at the beginning of his career:
31. Pharrell Williams is 49
And here he is at the beginning of his career:
32. Carmen Electra is 51
And here she is at the beginning of her career:
33. Winona Ryder is 51
And here she is at the beginning of her career:
34. Jay-Z is 53
And here he is at the beginning of his career:
35. Ricky Martin is 51
And here he is at the beginning of his career:
36. Omar Epps is 50
And here he is at the beginning of his career:
37. Idris Elba is 51
And here he is at the beginning of his career:
38. Lil Kim is 49
And here she is at the beginning of her career:
39. Lucy Liu is 54
And here she is at the beginning of her career:
40. Elizabeth Berkley is 51
And here she is at the beginning of her career:
41. Chilli from TLC is 52
And here she is at the beginning of her career:
42. Tori Spelling is 50
And here she is at the beginning of her career:
43. Rob Thomas is 51
And here he is at the beginning of his career:
44. James Marsden is 50
And here he is at the beginning of his career:
45. Carson Daly is 50
And here he is at the beginning of his career:
46. Brian Austin Green is 50
And here he is at the beginning of his career:
47. Sean Paul is 50
And here he is at the beginning of his career:
48. Gwyneth Paltrow is 50
And here she is at the beginning of her career:
49. Monica Lewinsky is 50
And here she at the beginning of her career:
50. Gwen Stefani is 53
And here she is at the beginning of her career:
51. Tony Hawk is 55
And here he is at the beginning of his career:
52. Maya Rudolph is 51
And here she is at the beginning of her career:
53. Busta Rhymes is 51
And here he is at the beginning of his career:
54. Jennifer Lopez is 54
And here she is at the beginning of her career:
55. Paul Rudd is 54
And here he is at the beginning of his career:
56. And last but not least, Keanu Reeves is 59
And here he is at the beginning of his career:
