Proud papa Nick Lachey says his little growing son, Camden, is now talking up a storm, but there's one thing he has learned to pronounce that truly makes dad Nick melt. "It just kills me every time ... it never gets old!" he says. What's the phrase that wins over this 98 Degrees heartthrob? Watch the video to find out! Plus, wish you could wake up with the handsome Nick every day? He's got details for you how can starting Monday.