After the Sister Who Makes Wave concert, the show's fashion director -Travis Nguyen posted an article about the efforts in preparing costumes for the show.
However, later, Kelbin Lei - singer Toc Tien's personal stylist was upset, questioning Justin Nguyen and thinking that this person was taking advantage of his efforts, "taking advantage of others' achievements as a foundation for himself to shine". Toc Tien's stylist said that he was in charge of the costumes for Toc Tien and many other artists, not just Justin Nguyen.
"Travis is a stylist of the Sister Who Makes Wave program, which does not mean that the 500 outfits in the show are made byTravis. There are many other artists working with their own stylists, typically all of Toc Tien's outfits are mine to take care of," Kelbin shared.
After that, Long Ichi - stylist of Lan Ngoc, Ngoc Thanh Tam and Dong Anh Quynh - also spoke up about the problem in the process of preparing costumes for the Sisters.
Long Ichi recounted the incident when Dong Anh Quynh filmed a show, an important item in the outfit disappeared. After searching, Long's group discovered that this item had been " Missingly worn" by Minh Hang's stylist. However, Long This's assistant affirmed that the item was carefully crafted, there was no possibility of unintentional mistakes. After that, Minh Hang's stylist apologized, but the two sides still had a noisy dispute.
Consecutive controversial information from the costume design team caused the audience to ask the producer to speak up to clarify and resolve the conflict. However, the Sister Who Makes Wave crew remained silent.

Meanwhile, Long This also revealed that Bui Lan Huong had a problem with the wrong color of outfit to the point that the show had to interrupt filming. Due to a dispute with the crew, Long Ichi chose a reserve outfit to support Bui Lan Huong.
Therefore, the dress Bui Lan Huong wore in the Final night was a backup item, not suitable for the female singer's style.
The series of scandals caused a heated debate among fans. Singer Bui Lan Huong spoke up: "Everyone, the show has ended well, congratulations. Don't argue anymore. Everyone is trying their best. Respecting everyone and sympathizing with each other is the most important thing. I don't care about clothes."
During the concert on April 12, the Sisters brought explosive performances.
Stars such as singer My Linh, singer Thu Phuong, singer Ngoc Anh, singer Minh Tuyet, singer Doan Trang, singer Pham Quynh Anh, singer Toc Tien all shine and impress the audience.
The concert is divided into 4 major chapters with the theme throughout "Unlimited reality". The program was elaborately staged and impressive with a large number of songs (more than 50 songs) and nearly 50 performances. The stage director is Blonde Nguyen, the music is breathed life by music director Hua Kim Tuyen and the S-HUBE team.