The song “Happy birthday to you” is copyrighted and makes anyone who sing this song anywhere in the world liable to pay the amount whatever is due on him. According to United States copyright law in United States Code, Title 17 §106, authors of works such as musical compositions have the exclusive right "to perform the copyrighted work publicly." In United States Code, Title 17 §101, the law defines publicly performing a work as "to perform or display it at a place open to the public or at any place where a substantial number of ...