stay squeaky clean like pg -- >> i don't know really. you have to be yourself in this thing. otherwise it will drive you a bit nuts. >> reporter: three years ago, harry was sweeping up a bakery. and louie worked in toys "r" us. they were just five kids hoping for a break on the british reality show, "x factor" after being booted as solo artists their hopes were shattered. simon cowell brought them back. >> we decided to put you through. >> reporter: giving them another shot. this time as a group. and though they only finished third, cowell signed them to his label any way ♪ let me kiss you ♪ >> reporter: not only could the boys sing, their good looks and natural charm and social media, the band itself has 14 million twitter followers, 19 million on facebook, and more views on youtube than the population of britain. while cynics will say the band is a manufactured cash machine, their humor and innocence, too good to be true. ask the band.