10/02/2012 at 09:00 AM EDT
Even at 60, Liam Neeson
doesn't mind showing a little skin – in tight pink underwear, at that!
The Irish actor made quite the revealing appearance Monday on The Ellen DeGeneres Show
, emerging in a bathrobe and eventually stripping down to his skivvies – for a charity fundraiser in the fight against breast cancer.
"If I take this off, does the $10,000 become $20,000?" he asks DeGeneres before taking off the robe.
She advises against going any further than that. "We get fined if you take those off," she says of his bright pink briefs.
Being an action movie star
helps Neeson stay in shape. Most recently, he had to prepare to reprise the exhausting role of ex-CIA agent Bryan Mills in Taken 2
"I keep pretty fit in life, as a rule," he told a British movie website
this week. "But sure, there are a few more push-ups and sit-ups you have to do in the morning."