On this morning's Fox and Friends, superstar and host of 'America's Got Talent' Nick Cannon stopped by for a chat with Brian, Steve and Gretchen ... and while he was here, he doled out some fatherly advice to impending father-to-be Prince William! Cannon is the proud papa to twins by wife Mariah Carey.

Find out what Nick's words of wisdom were ... and give us your own parenting tips for the royal family by leaving a comment right here!