Mark Wahlberg, 40, Flaunts Body in Tight White Tank Top, Boxer Briefs

Mark Wahlberg films a scene in his underwear on the set of 'Pain and Gain' in Miami. Jeff Steinberg/PacificCoastNews.com

Mark Wahlberg was steaming up the set of his new movie Pain & Gain in Miami on Tuesday — by stepping out in nothing but his knickers!

The actor, 40, showed off his buff bod and assets in a tight white tank top and grey boxer brief underwear while channeling his days as a Calvin Klein underwear model (aka Marky Mark) in the early 90's.

Mark W underwear
Mark Wahlberg films a scene in his underwear on the set of 'Pain and Gain' in Miami. Jeff Steinberg/PacificCoastNews.com

No stranger to priding himself on his hard body, Wahlberg hasn't missed a chance to parade around in the Miami heat while flaunting his chiseled pectorals, bulging biceps and toned abs.

Last year, the former underwear model joked about how his days as a Hollywood heartthrob are dwindling down, thanks to a certain Twilight star.

"I'm sitting at a table with a gentleman who is better looking than you and is in better shape than me," Wahlberg told Leonardo DiCaprio during a speech at the Hollywood Foreign Press Association's luncheon in Beverly Hills. "So, we're both out of a job, dude. Taylor Lautner! We're screwed. It's over, dude. Titanic and Boogie Nights were a long time ago. I accept it. I had a good run and on to the next."

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