是渴望？追求？还是在发现自我？是谋生？乞讨？还是在发泄自我？　　很早，国外就有街边歌手，有的为了生存，有的是在喧泄；　　香港也早有地铁歌手的出现，在人们的生活中多了一个职业似的生存方式；　　近两年，北京也开始中出现了地铁歌手……　是渴望？追求？还是在发现? Is longing? pursue? Still find yourself? Is to make a living? Begging? Or vent yourself? Very early, there are street singers abroad, some in order to survive, some are in noisy; Hong Kong has long been the emergence of subway singers in people’s lives more than a career-like way of life; the past two years, Beijing also began In the subway singer appeared ... is the desire? pursue? Still found?