The Black Crowes frontman Chris Robinson has ridiculed the newest breed of rock stars who take care of their looks - because he believes musicians should be dirty. The singer, whose marriage to Kate Hudson ended in divorce, has admitted he doesn't bathe - because he is an old-fashioned rocker. He says, "Everything is squeaky clean. Even the punk-rock bands are clean. You're not supposed to get your hair done that much, you know what I mean? "You're supposed to look like s**t because you did it yourself and you never bathe. You can't be punk rock if you buy all your s**t at (exclusive store) Fred Segal."