"They've grown up with it and they know it's not easy. They know it's not limousines and expensive clothes; it's getting in a van and driving for five hours to the next gig. I like to think that I've taught them that it's not all about fame and money. It's about being great at something, purely for the sake of being great at it." Rocker Johnny Marr reveals his children, son Nile and daughter Sonny, are embarking on careers in music.