VIDEO: Timeless Mark Whalberg is 40 years old now and he's still BANG'N!!

It's been 20 years now (damn!) since Marky Mark posed for his iconic Calvin Klein underwear ads, but 40-year-old Mark Wahlberg's chiseled body is still the number one punchline in this clip from Tina Fey and Steve Carell's Date Night (see above).

And here, an entirely shameless walk down memory lane, to when Wahlberg's torso first became a national fixation: