The Big 29: America Rules!

This week's most intriguing people under 30:

1. America Ferrera (22), actress
2. Steve Chen and Chad Hurley (28, 29), YouTube founders
3. Beyonce Knowles (25), musician/actress
4. Shaun White (20), snowboarder/skateboarder
5. Maria Sharapova (19), tennis player
6. Scarlett Johansson (22), actress
7. Mark Zuckerberg (22), Facebook founder
8. Danica Patrick (24), Indy Racing driver
9. Tom Brady (29), NFL quarterback
10. LeBron James (22), NBA forward
11. Ludacris (29), musician/actor
12. Kevin Rose (27), Digg founder
13. Reggie Bush (21), NFL running back
14. Jennifer Hudson (25), actress/singer
15. Shakira (29), musician
16. Ivanka Trump (25), business executive
17. Justin Timberlake (25), musician/actor
18. Emily Blunt (23), actress
19. B.J. Novak (27), writer/producer/actor
20. Evangeline Lilly (27), actress
21. Michelle Wie (17), golfer
22. Kal Penn (29), actor
23. Ehren Watada (28), U.S. Army First Lieutenant
24. Ian Johnson (20), Boise State running back
25. Kirsten Dunst (24), actress
26. LaDainian Tomlinson (27), NFL MVP
27. Shawn Fanning (26), SNOCAP founder
28. Maggie Gyllenhaal (29), actress
29. Jake Gyllenhaal (26), actor

Newbies: America's quarterback, Kumar's evil twin
Out: Heisman winner, SNL comic
Dropping quickly: NFL MVP