Perhaps an homage to his band's namesake planet?
Leto captures his Joker-green 'do for posterity.
The Suicide Squad star goes Joker-wild on the cover of Empire.
Leto's platinum dye job turned heads at Paris Fashion Week.
Returning to the Oscars in 2015 as a defending champion, Leto made sure his long locks stayed dry on a rare drizzly day in L.A.
Sometimes, you just don't want your hair hanging in your face, so you braid it for the 2015 Golden Globes.
This picture is hypnotic and not because of any hair.
Leto keeps his head warm while traveling.
On some days, only Jared Leto can prevent forest fires.
Jimmy Fallon grooms Jared's beard, but the standing order was not to touch the head.
Thank you, Jared Leto, for giving us a peek at your platinum-Mohawk days.
Which is pretty much every day, but especially here.
The 30 Seconds to Mars frontman goes full-grunge with that flannel shirt tied around his waist.
His Best Supporting Actor Oscar for Dallas Buyers Club looks a little bald in comparison, but otherwise they're a perfect match in 2014.
All dudes should look this hot chowing down at Subway.
Just a casual day in the neighborhood for this guy.
Seriously, who's looking at his hair?
The actor attends the Chanel show as part of Paris Fashion Week.
The actor performs with his band Thirty Seconds to Mars in Sao Paulo, Brazil.
The actor is spotted out and about after attending the Rimowa NYC Store Grand Opening in Manhattan.
And he probably just showed up on set looking like that.