As a famous fashionista and KOL, Chau Bui is one of the contestants who attracted the most attention right from the first stage of "Em xinh say hi". However, the deeper Chau Bui went, the more he was constantly involved in controversy from his singing voice to his expressions on stage.
In the "Dance Battle" challenge at the recent episode of "Em xinh say hi", Chau Bui represented the group to compete in dancing to the available music. In his performance, Chau Bui continuously had wrinkled expressions and grimaces that were somewhat unsuitable for street dancing. Many audiences thought that she was performing too much and struggling to match her personality when dancing, but it was not yet available.

In addition, there were still a few viewers defending the show, saying that she was deliberately making the atmosphere cheerful and exciting in accordance with the criteria of this competition.
Not only about her expressions, Chau Bui's voice is also a factor that made her criticized. As a fashionista, Chau Bui did not receive much expectation for her singing voice. However, she continuously mentioned the story of studying vocal music for 6 years and not improving her singing voice through the competitions.
In live stage 3, Chau Bui joined Phuong Ly's team and performed the song "So Dam". Not showing off her vocal ability, Chau Bui chose a melody rap, which caused her to be criticized for breaking the emotions of the whole song. Although she won, Chau Bui's performance in "So Dam" caused her to lose points with the audience.

In addition, the fact that many "beautiful sisters" have talents and voices but have to leave like Muoiii, Han Sara, Lyly... makes the audience even more confused when Chau Bui still goes deep in the program, which requires talent in singing.
Some audiences think that Chau Bui may be one of the " media-attracting faces" of this year's show, but some also expressed concern that the deeper she went, the more she revealed her weaknesses in a playground that required music expertise.