Bodyguard star Richard Madden stripped off his top after climbing a mountain in California.
He posted a photo on Instagram as he hiked in Topanga State Park.
The Scots actor captioned the snap: "Tuesday's mountain."
More than half a million people have liked the topless picture including a number of his celebrity pals.
Actor Douglas Booth joked: “Did you Uber to the top? You don't look very sweaty."
Madden replied: “ Yep the Uber was there, I jumped out for a picture.”
Years & Years frontman Olly Alexander commented: "I'd climb that mountain any day."
Meanwhile, fellow Game of Thrones star and Lily Allen's brother, Alfie added: "You've changed."
