Kevin Federline seventh in a list of the '50 Most Influential Men under 45'

Kevin Federline has come seventh in a list of the '50 Most Influential Men under 45'.

The star, the ex-husband of Britney Spears, came in joint seventh position along with the late Anna Nicole Smith's lover Larry Birkhead in 'The Good Fathers' category in the list compiled by Details magazine.
The publication wrote: "Meet America's new parental role models. We all expected Kevin Federline and Larry Birkhead to crash and burn as fathers. Instead, by being more visible presences in their children's lives than many Hollywood A-listers, they emerged as unlikely candidates for Dad of Year.
"The New Dad, as represented by Kevin and Birkhead, is involved. He trucks the kids to the supermarket, decorates their bedrooms, and even lets them dictate the direction of his career."
The list was topped by 'High School Musical' star Zac Efron who, along with 'Indiana Jones and the Crystal Skull' actor Shia LaBeouf and the 'Disney Kids' - including Hannah Montana and Hilary Duff - took joint number one spot.

Details Magazine's Power 50 list:

1. Zac Efron, Shia LaBeouf, and the Disney Kids. Ages: 15 to 27
2. The Surge - Average Age: 27
3. Mark Zuckerberg - Founder, Facebook. Age: 23
4. The Bible Beaters - Age: Born Again Yesterday
5. The School Shooters - Eric Harris and Dylan Klebold. Ages: 18 and 17
6. The Subprime Sucker - Mortgage Defaulter. Age: 34
7. The Good Fathers - Kevin Federline and Larry Birkhead. Ages: 29 and 34
8. Muqtada al-Sadr - Shiite Cleric. Age: 34
9. The Other F-word - Age: Forever young
10. Howard Wolfson - Political Consultant for Hillary Clinton. Age: 40 (Last Year's Rank: 47)
11. Erik Prince - Founder and CEO, Blackwater Worldwide. Age: 38
12. Google - Sergey Brin and Larry Page, Founders. Ages: Both 34 (Last Year's Rank: 11)
13. YouTube - Steve Chen and Chad Hurley, Founders. Ages: 28 and 30 (Last Year's Rank: 2)
14. YouPorn - Stephen Paul Jones, Creator. Age: 27
15. The Green Guilt-Tripper. Age: Thirtysomething
16. The Spiritual Leader - Joel Osteen, Pastor, Lakewood Church. Age: 44
17. Kevin Martin - Chairman, Federal Communications Commission. Age: 40
18. Rascal Flatts - Gary LeVox, Joe Don Rooney, Jay DeMarcus. Ages: 37, 32, 36
19. The Politician's Son - Andrew Giuliani. Age: 21.
Craig, Ben, Josh, Matt, Tagg Romney. Ages: 26, 29, 32, 36, 37
20. Ryan Seacrest - Age: 33 (Last Year's Rank: 33)
21. Bashar al-Assad - President of Syria. Age: 42 (Last Year's Rank: 25)
22. Jonathan Ive - Senior VP of Industrial Design, Apple. Age: 40 (Last Year's Rank: 30)
23. Mario Lavandeira - Blogger and Proprietor, PerezHilton.com. Age: 29 (Last Year's Rank: 5)
24. Andrew Bieniawski - Office of Global Threat Reduction, National Nuclear Security Administration. Age: 40
25. Michael Levine and Howard Nuchow - Coheads, CAA Sports. Ages: 36 and 37
26. David Plouffe - Campaign Manager, Obama 2008. Age: 43
27. Xavier Von Erck - Founder, Perverted Justice. Age: 28
28. David Cutler - Professor of Economics, Harvard University. Age: 42
29. Iggy (Ellen DeGeneres dog) - Adoptee. Age: 6 months (3.5 in dog years)
30. The Boys Behind Girly TV - Josh Schwartz, Executive Producer, Gossip Girl. Age: 31. Tony DiSanto, Executive Producer, The Hills. Age: 39
31. Ben Silverman -Cochairman, NBC Entertainment and NBC Universal. Age: 37
32. Revenge Nerds - Judd Apatow (Last Year's Rank: 16), Writer, Director, Producer and Seth Rogen, Actor, Writer, Producer. Ages: 39 and 25
33. The Cheaters - Barry Bonds. Age: 43. Tim Donaghy. Age: 40. Michael Rasmussen; Age: 33
34. Bobby Jindal - Governor-Elect, Louisiana. Age: 36
35. The Vocal Vets - Average Age: 25 - Iraq War soldiers
36. The Exonerated - Reade Seligmann, David Evans, and Colin Finnerty, Duke Lacrosse Players; Ages: 21, 22, 21
37. The Career-Doctors - Justin Timberlake, Mark Ronson, and Timbaland (Last Year's Rank: 29). Ages: 26, 32, 36
38. The Bodyguard - Average Age: Thirtysomething
39. Antoine Arnault - Communications Director, Louis Vuitton. Age: 30
40. Steven Rubenstein - President, Rubenstein Communications. Age: 38
41. Harry Potter - Wizard. Age: 17.
42. Mr. Contagious - Andrew Speaker, Tuberculosis Carrier. Age: 32
43. The Gameboy - Jason Jones, Cofounder of Bungie Studios, Creator of the 'Halo' franchise. Age: 35
44. Shawn Carter a.k.a. Jay-Z - President and CEO, Def Jam Recordings. Age: 38 (Last Year's Rank: 20)
45. The Well-Dressed Man. Age: In his prime
46. Ira Ehrenpreis - General partner, Technology Partners. Age: 38
47. Michael Rapino - CEO, Live Nation. Age: 41
48. Markos Moulitsas Zuniga - Founder, Daily Kos. Age: 36 (Last Year's Rank: 43)
49. Mr. Rebound - Kelly Slater. Age: 35
50. Tyler Perry - Playwright, actor, director, author, producer. Age: 38