The Big 29: Bootylicious

This week's most intriguing people under 30:

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

Newbies: Super defender, Army brat
Out: Bears tough guy, country idol