Rock is a kind of music that is popular for young people, nowadays. It arose in the United States of America in the middle of 1950s. Essential for a band needs one or several vocalists. This genre are played guitar, drums and others very heavily. The lyrics usually talk about the stress that comes from love breaking or something else. Rock music makes the singers feel release, when they are stress, after sing a song. Because these songs allow the singers shout very hard and high. However, it is not good for listeners to listen when they feel stress because they will get more stress. If the listeners feel normal, then they listen to it, it makes them happier. These are my opinion, I have tried it. In rock genre, there are jazz-rock, heavy metal and punk rock. Nevertheless, since 1990s, rock music has been included rap, techno, and others. A famous band of rock music call Linkin Park is the first famous band that sang rock-rap songs, and their genre is hard rock and rap. They have released three albums since 2000. Their famous songs are "In the end", "Numb", "Shadows of the day", and "Given up". I love these songs very much and others songs of Linkin Park. Thus, I love rock music so hard. Finally, I am also a young man and I think that others young men perhaps like rock music as me, too.Therefore, they cannot become good people to develop the country because they have not studied and have no knowledge. The important thing is heroin ruins their brains and other organisms. However, when they stop doing the drugs, their brains and organisms are not good as the students that have not doing them. Therefore, I think that students must not take the drugs because they destroy everything in our lives and do not try to take them.