Can music really influence teenagers?

There are some websites which suggest that if teenagers listen to a certain type of music, often called "emo", but more commonly called alternative rock, they are more likely to be depressed, or commit suicide, which I think is ridiculous. Music is supposed to make you feel better, and if some stupid people who haven't even listened to the music believe that songs with morbid lyrics will persuade young minds to act differently, then they need a reality check. People are depressed because of the world they live in, not because of music.