The Big 29: In the Driver's Seat

This week's most intriguing people under 30:

1. Danica Patrick (24), Indy Racing driver
2. Beyonce Knowles (25), musician/actress
3. America Ferrera (22), actress
4. Mark Zuckerberg (22), Facebook founder
5. Roger Federer (25), tennis player
6. Shaun White (20), snowboarder/skateboarder
7. Steve Chen and Chad Hurley (28, 29), YouTube founders
8. Ludacris (29), musician/actor
9. Maria Sharapova (19), tennis player
10. Jennifer Hudson (25), actress/singer
11. Scarlett Johansson (22), actress
12. Emily Blunt (23), actress
13. Carrie Underwood (23), musician
14. LeBron James (22), NBA forward
15. Serena Williams (25), tennis player
16. Maggie Gyllenhaal (29), actress
17. Kevin Rose (27), Digg founder
18. Justin Timberlake (25), musician/actor
19. B.J. Novak (27), writer/producer/actor
20. Ryan Gosling (26), actor
21. Sidney Crosby (19), NHL center
22. Shakira (29), musician
23. Kal Penn (29), actor
24. Luke Skurman (26), College Prowler founder and CEO
25. Jake Gyllenhaal (26), actor
26. Michelle Wie (17), golfer
27. Evangeline Lilly (27), actress
28. Ivanka Trump (25), business executive
29. T.I. (26), musician/actor

Newbies: Country Idol, College Prowler exec, Grammy-winning rapper
Out: Colt defender, Army brat, Spidey's girl