This meme is originated from a Chinese TV show "duets (season 2)", as the mentors performed an awful and noisy show to all audience. The most impressive section is given by David Tao, which sounds like "oh ah ah eh eh ah ah ...". This meaningless singing reflects some jazz flavor of him, but also raised concern about his mental health by many individual music commenters online. This part is also adapted by some meme makers in China. An outstanding derivative piece of work is shown below.