Guo Xiaohei is an evaluation blogger on Tik Tok. The song that appears most frequently in his videos is Why Not Vae, which is the background music of many delicious foods.

"Why not" is a song written, composed, arranged and sung by Vae, and it is the title song of Vae's first solo album "Customs". Vae's flexible articulation, excellent rhythm and lazy voice that doesn't care about anything explain the fearless youth of "I just want to sing a song for you and have no style, why not give up the world for you".