Yeah, I believe they do. Just look at the rap/r&b influence on the youth culture. Same with people like Britney Spears. Because of her (and others), I've seen girls as young as 6 and 7, walking around in tube tops and gaudy lipstick singing songs like "Toxic". I really dont think it could be more evident that the way musicians portray themselves has an affect on people.
hehe, hope that answers the question ^_^;;