Colbert also asked Gibson what he would tell his younger self, if he could go back in time. And Gibson had a wealth of good advice.
"Don’t be so caught up in the little things. Take advantage of all the gifts the world has to offer. Live every day to the fullest," Gibson shared. "I'd also tell myself -- my younger self -- to shut the f**k up."
The joke elicited a chorus of cheers from the Late Show audience.