Bruce Willis Has An Important Message for Those Wanting to Shave Their Heads (VIDEO)

Jon Stewart may have a man-crush on Bruce Willis: He was exceedingly complimentary when the actor dropped by 'The Daily Show' (weeknights, 11PM ET on COM). "You have a good head for what you've got going on," said Stewart, gesturing to his bald scalp. "It's a tremendously well-sculpted skull ... I respect you, and I respect how you've aged," Stewart deadpanned.

Willis turned to the camera and said, "You kids at home, listen to what Jon's saying, because really, you do not want to shave your heads unnecessarily. Don't do it too early. Make sure you know what your head looks like underneath all that hair."

Stewart cracked a joke about the impromptu public service announcement, and Willis couldn't keep a straight face. The host then threw in another compliment for Willis, just for good measure.