We see from the TV that there are many mass-election ( 海选 ) shows, like "The Voice of China," "Chinese Idol," and "China's Got Talent," to discover potential stars. New stars will come out, and teenagers are these shows' target audience. Their viewpoints on the idol decide who will be out standing in these shows, but teenagers sometimes adore idols in a blind way, which annoys many parents. Teenagers are yet to be mature; they always judge a person by appearances. Some stars who are endowed with handsome faces easily get teenagers' attention; teenagers adore and imitate them. Some idols are created by their companies; actually, they may have nothing inside, except for their beautiful faces. As teenagers' idols, they should have good qualities and show their positive power. Without much ability of judging, teenagers easily imitate idols' negative behavior. Many years ago, there was a very popular idol drama, in which there were four handsome guys called F4. They liked to use violence to work things out. F4 were imitated by teenagers and then it was reported that some middle school boys went to other schools to fight. How terrible it was! Teenagers did so only because they thought it was cool, but they ignored the coming punishment. Several years ago, a piece of news made everyone reflect on the "fans" phenomenon again. Beyond anyone's wildest dreams, a young girl, who was crazy about Andy Lau, had made her father die. On her own part, she could do anything for her star, such as giving up her studies, work, and even her life. Teenagers may not have clear ideas about what is right. But almost every teenager has an idol. They should choose the good ones to follow, who can give them positive power.