HOW to describe the feeling of loneliness (孤单)? In Canadian pop band Simple Plan’s words, it’s just like floating (漂浮) in the universe alone. In September 2011, Simple Plan released the song Astronaut. In a quick but gentle melody, the singer shouts out to see if someone responded (回应). In the MV, an astronaut floats in space, looking for someone or something like him. But all what he can see is the endless darkness. What could be lonelier than that?