Something to Unwrap: 30 Hot Photos of Jake Gyllenhaal!
Hope your stocking can handle lots of coal, because this shot of Jake Gyllenhaal as a marine in 2005's Jarhead spawns very, very naughty thoughts!
CAN YOU BARE IT?
We'd talk about how cute his swim trunks are in this 2009 photo from Martha's Vineyard, but face it – you're not looking at his shorts.
The actor simmers in a (fully clothed, sorry) side-view shot from 2005.
If your heart didn't melt at this 2004 shot of Gyllenhaal cuddling an adorable dog, then you have no soul. (Thanks for reading PEOPLE.com, Voldemort!)
Casual's cool, but Gyllenhaal cleans up in traditional black tie at the 2006 Screen Actors Guild Awards.
The surfer boy gets things wet during a beachy day out in 2005.
Even in a low-key getup like a T-shirt and jeans, Jake looks like a million bucks.
Behind door No. 3? A prize worth waiting for!
Gyllenhaal's most devoted fans will recall falling for him in 2001's cult hit Donnie Darko, where he played a disturbed teen (aww, emo eyes!) who has visions of a bunny that tells him when the world will end. Really.
Skipping a necktie and a shave, Gyllenhaal heats up the press line in October.
RIDE 'EM, COWBOY!
He scored an Oscar nod for his turn as Jack Twist, a cowboy in love with another man (played by Heath Ledger) in 2005's Brokeback Mountain. Say it with us: "I wish I knew how to quit you."
He's the most wanted man, premiering The Prince of Persia: The Sands of Time in L.A. in May.
The actor takes his biceps for a jog, sunning those guns in L.A. last August.
HEAD OF THE CLASS
Ari Gold or Jake Gyllenhaal? The actor channels the suave Entourage character this past May in New York. Yes, let's hug it out. Several times.
CHEST IN SHOW
Gyllenhaal took it off – and kept it off – for this year's action pic The Prince of Persia: The Sands of Time.
He's more than just a pretty face! The charitable actor plants himself in the middle of a photo, taking part in the Green Service Day project at an L.A. high school.
After a string of well-received indie films, Gyllenhaal – and an incredibly thick head of hair – make an action film debut in 2004's Day After Tomorrow.
Crisp in a snow-white henley, Gyllenhaal shows off his new flick, Love and Other Drugs, in October.
Gyllenhaal gets tongues wagging – literally – hanging out with his puppy friend in 2006.
A SERIOUS MAN
The actor strikes a serious pose during a 2005 Jarhead press conference.
Get your swerve on! The star embraced his inner sk8er boi while weaving around New York City traffic in 2006.
At 19, an adorably fresh-faced Gyllenhaal landed his first lead role in October Sky, a 1999 film about a NASA scientist's rocky upbringing.
He may not have taken home the Oscar at the 2006 Academy Awards, but Gyllenhaal was a winner on the red carpet.
Time for more cardio – although the way your heart may be pounding after looking at all these shots of Jake, you could probably skip the gym.
We'll go for the obvious joke: Gyllenhaal got lei'd in Hawaii in 2005.
LEAN INTO IT
In 2005, Jake still had a boyish look to him while promoting Jarhead.
With a shorn hairdo and traditional bowtie, Gyllenhaal makes the scene at the 2010 Academy Awards.
Another shirtless photo of the birthday boy. C'mon, it's not like you're complaining.
No wonder Anne Hathaway falls for him in Love and Other Drugs – just check out that smile (and those forearms)!
THE FINAL SHOT
Gyllenhaal heats up Cannes in 2007. Happy birthday, Jake!