OK! Old School: Where Have You Gone, Birthday Boy Josh Hartnett?

He was the hottest person alive at the turn of the century. It's his birthday, so let's reminisce about the good old days!

I think the secret of Josh Hartnett is that he was attainably hot. He could have been your high-school sweetheart.

Or, given this look, perhaps your college sweetheart who brings you coffee during all-nighters.

His first major movie was Halloween: H20, in which he played poor Jamie Lee Curtis' son.

Keeping a firm grasp on the horror genre, he then starred in the super creepy film The Faculty. Please rewatch this and look for Jon Stewart playing a possessed teacher.

In Sofia Coppola's first film The Virgin Suicides, Josh played the dreamiest boy in school (who delivers the immortal line "You're a stone fox" to Kirsten Dunst).

Speaking of Kirsten, he was spotted smooching his co-star years later. Kirsten Dunst has all the luck!

He was part of a tragic love triangle in Here on Earth, a parallel film to A Walk to Remember.

Iago in Othello is supposed to be one of the most inexplicably evil characters in all of literature, but when played by Josh? Suddenly adorable and sympathetic.

Wait, yet another love triangle! The fact that he was competing with Ben Affleck for a woman in Pearl Harbor goes to show what a huge star he was in 2001.

40 Day and 40 Nights had a fully ludicrous plot about Josh abstaining from sex for Lent, but we watched it because it was Josh talking about sex for 90 minutes.

Has he made a movie since Wicker Park in 2004? IMDb says yes but I don't buy it.

A much more innocent time—baby Josh and baby Rihanna, on TRL no less.

When Josh leaves the house now, it's often with beautiful girlfriends. He dated model Sophia Lie from 2009 to 2011 or so.

He's now dating British model/actress Tamsin Egerton.