Jared Leto flashes his abs on 50th birthday: 'How are you 50?'

Jared Leto is flashing his abs at 50.

The Oscar winner turned the big 5-0 on Dec. 26, marking the occasion with not one but two shirtless shots. On Christmas, the eve of his birthday, the Santa-hat-wearing Suicide Squad star teased fans with a peek at his bare chest underneath a denim shirt.

For his actual big day on Sunday, the former My So-Called Life heartthrob ditched the shirt completely, posing topless and baring his sculpted — and seemingly oiled-up — abs while holding a slice of rainbow layer cake. It's unclear, however, when the photo was taken, as the bloodied lip and director's chair suggest Leto was captured behind-the-scenes while shooting Morbius, in which he plays a biochemist-turned-vampire.

"Thx for all the bday wishes!" Leto captioned the steamy post, which prompted a fan to respond, "How are you 50?"

According to Leto's Instagram, rock climbing helps him stay in shape. The star has also credited his mostly vegan diet.

Video: Jared Leto breaks down his iconic career

"I still have plenty of vices, but alcohol isn't one of them," he told British GQ in 2013. "It's probably just down to sleep and diet. If you travel long haul a lot or don't sleep much, it's not going to last very long, that's for sure. I'm pretty healthy so I think that helps a lot. I've been that way for a long time — 20 solid years of eating vegetarian/vegan and taking care of myself. That probably helps the preservation process."

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