lively. erin moriarty will report our cover story. >> reporter: tony shea, ceo of zappos.com, is not your ordinary shoe salesman. he's shaking up the business world, making his customers happy by making his employees happy. >> i've never had this my attention in my life. >> reporter: when you have the little zs on people's cheeks, you can understand why people would say, oh, it feels a little cult like. >> you mean that's not normal? >> reporter: later on sunday morning, the man who delivers happiness one pair of shoes at a time. >> mason: the rock show that's been rocking broadway i...