Dennis Quaid is ripped -- no, seriously.
Proving age is nothing but a number, the 61-year-old shirtless actor showed off his six-pack abs and toned arms while vacationing in Hawaii.
KAPP / WAHS / AKM-GSI
The Day After Tomorrow star has been enjoying a long holiday alongside his wife, Kimberly, and his three children Jack, 23 (with ex Meg Ryan), and 8-year-old twins, Zoe and Thomas.
His oldest son shared a cute family photo from their Christmas getaway on Instagram, captioning the pic, "HEY! Merry Christmas, ya damn hooligans!"
Quaid isn't the only celeb defying their age. Kris Jenner showed plenty of skin for Love magazine's advent calendar.
The 60-year-old mother of six frolicked in a luxurious pool while donning a sexy swimsuit for the shoot. Check out the pics in the video below.