The soundtrack of Douyin Clown is "TakeMeToInfinity", sung by ConsoulTrainin. Heath Ledger starred as the Joker in "The Dark Knight" in 2008 and is the biggest villain in film history. Playing the Joker also had a great impact on Heath Ledger. Because his mind was always in a state of excitement, it was difficult for him to fall asleep at night. Because he couldn't stop thinking and imagining, although his body was extremely exhausted, his brain kept working.

In order to sleep, he had to resort to drugs. One sleeping pill had no effect, but two pills made him fall into a coma. Later, he also took sedatives at the same time, so that he could fall asleep for a while. Being so dependent on drugs may better understand why Heath died at home after taking a mixture of drugs. After Heath Ledger passed away after playing The Dark Knight, someone made a 30-second memory video in memory of him, with this song as the background music.