Mickey Rourke Looks Buff at 58!

Mickey Rourke is looking super muscular these days!

The actor, 58, showcased his fit physique while out in L.A. recently – but says it doesn’t come without a lot of hard work.

“In my life, I do everything all or nothing,” Rourke tells PEOPLE about his approach to exercise. “Fitness helps keep my life balanced and it’s a great release for anything I have going on in my life. My body is also my tool for my career.”

Mickey Rourke Defeats Opponent Half His Age in First Fight in 20 Years

Mickey Rourke has gone from The Wrestler back to boxing.

The actor, 62, returned to the ring Friday, defeating a fighter less than half his age in a Moscow exhibition bout.

Rourke sent Elliot Seymour, a 29-year-old former California Golden Gloves champion with a 1-9 professional record, to the canvas twice in the second round before the referee stopped the fight.

Mickey Rourke's Tough Ab Workout in N.Y.C.

Mickey Rourke worked up a sweat on the StairMaster at Equinox Soho in New York – but the actor wasn’t dressed to sweat. He was wearing a black wool cap and an olive-colored shirt. Rourke worked on his abs and did stretches with a friend.

Mickey Rourke Calls His Girlfriend a 'Gift From Heaven'

A year after his emotional comeback performance earned him a Golden Globe for The Wrestler, Mickey Rourke was once again on cloud nine at this year’s show, thanks to the new love he squired down the red carpet.

Rourke’s girlfriend – who has widely been misidentified on the Internet – is Russian-born model Anastassija Makarenko, Rourke reveals exclusively to PEOPLE. “She’s a gift from heaven,” says the actor, 57, who seemed smitten as he kept a tight grip the stunning blonde throughout the evening.

Mickey Rourke Scores a Knockout at Wrestlemania

Mickey Rourke, who earned an Oscar nomination for his work in The Wrestler, stepped into the ring again on Sunday, this time to fight professional wrestler Chris Jericho at Wrestlemania 25.

After watching Jericho knock out wrestling legends Ric Flair, Roddy Piper and Ricky Steamboat, Rourke, 56 climbed into the ring at the Reliant Stadium in Houston, Texas, to spar with the 38-year-old Jericho.

Mickey Rourke Wins, Gives Rambling Speech at Spirit Awards

Comeback star Mickey Rourke got a standing ovation after giving a riotous, decidedly uncensored acceptance speech for winning the best actor award at the Spirit Awards on Saturday.

The Wrestler star, 56, dedicated the trophy to his beloved Chihuahua, Loki, who passed away last week. “I’ve just gotten thousands of letters from strangers and people that know me about my dog that died six days ago, Loki. This is for you, baby,” said the actor, who has been riding a career resurgence thanks to his role as a washed-up prizefighter in the drama.

How the Bets Are Falling on the Oscars

Second to the Super Bowl, betting on the Oscars is a gambler’s favorite pastime, according to Doc’s Sports Service, an online handicapper.

While Las Vegas doesn’t post odds on the Oscars, due to Nevada Gaming Commission rules, offline betting services do, according to Doc’s.

As for those favored to end up holding Hollywood’s most cherished golden boy on Sunday night – ABC broadcasts the Oscars from the Kodak Theater starting at 8 p.m. – the good doctor recommends putting your money on the following:

Mickey Rourke: My Dogs Saved My Life

Mickey Rourke, who thanked his dogs during his Golden Globes best actor acceptance speech, says his pooches received a shout-out for one simple reason: They were there for him during his darkest hour more than a decade ago.

Mickey Rourke Expects to Applaud Sean Penn Oscar Night

Mickey Rourke’s dogs may be left in the cold come Oscar night.

Rourke “thanked when he won the Golden Globe Award for best actor last month, saying, “Sometimes when a man’s alone, that’s all you got is your dog. And they’ve meant the world to me.”

But on Feb. 22, the comeback king doesn’t anticipate another shout-out to his beloved pooches.

PHOTO: Mickey Rourke's New PETA Ad

First, Mickey Rourke thanked his dogs after his Best Actor win at Sunday’s Golden Globes ceremony for his role in The Wrestler.

Now, Rourke is posing with his pup in a new spay and neuter campaign.

Cradling his Chihuahua, Jaws, in PETA’s new ad, the actor urges people to “have the cojones to fix your dog. When dogs get knocked up, puppies get put down because there aren’t enough homes for them.”