当你沉浸在周杰伦、张韶涵的歌曲中时，你可曾想过：在西方国家，时下最受年轻人欢迎的流行单曲是什么呢？
WHILE you are enjoying the songs of Jay Chou and Angela Chang , have you ever wondered what is the most popular single among young people in the West ?
张韶涵