Age Is Just a Number: Count the Years in Shirtless Guys

It's hard to resist a shirtless shot of your favorite celebrity. Now that Summer's here, the beach and pool outings are rolling in. Ryan Phillippe looked as fit as ever on the beach in Miami, where he wasn't afraid of a little PDA with his girlfriend, Paulina Slagter. Meanwhile, all the way over in Hawaii, James Marsden strutted his stuff, and Chris Pratt showed off the physique he worked so hard on for Guardians of the Galaxy. While we're waiting for even more Summer fun, who are we to deny ourselves a little extra shirtless appreciation? We've pretty much determined that these guys are looking hot at every age, so keep scrolling to see all the shirtless glory from age 20 to age 45. Source: FameFlyNet, Splash News Online

20: Tom Daley
FameFlynet

20: Tom Daley

20 (Bonus): Patrick Schwarzenegger
INFphoto.com

20 (Bonus): Patrick Schwarzenegger

22: Louis Tomlinson
INFphoto.com

22: Louis Tomlinson

(With a bonus Liam Payne!)

23: Garrett Clayton
Pacific Coast News Online

23: Garrett Clayton

27: Michael B. Jordan
Pacific Coast News Online

27: Michael B. Jordan

27 (Bonus): Sam Claflin
FameFlynet

27 (Bonus): Sam Claflin

28: Daniel Sharman

28: Daniel Sharman

Source: MTV

29: Kellan Lutz

29: Kellan Lutz

30: Chris Hemsworth
INFphoto.com

30: Chris Hemsworth

32: Jamie Dornan
Splash News Online

32: Jamie Dornan

33: Justin Timberlake
Splash News Online

33: Justin Timberlake

34: Chris Pratt
Splash News Online

34: Chris Pratt

35: Adam Levine
Splash News Online

35: Adam Levine

36: Matt Bomer
AKM-GSI

36: Matt Bomer

37: Orlando Bloom
INFphoto.com

37: Orlando Bloom

39: Ryan Phillippe
FameFlynet

39: Ryan Phillippe

39 (Bonus): David Beckham
Pacific Coast News Online

39 (Bonus): David Beckham

40: James Marsden
FameFlynet

40: James Marsden

41: Neil Patrick Harris

41: Neil Patrick Harris

42: Justin Theroux
FameFlynet

42: Justin Theroux

43: Tyson Beckford
FameFlynet

43: Tyson Beckford

45 (Bonus): Hugh Jackman
INFphoto.com

45 (Bonus): Hugh Jackman