In the semi-finals Sing! Asia, Phuong My Chi and Kha Lau paired up and received a score of 190.6.
Phuong My Chi's team ranked third and continued to the second semi-final. However, the scores of the direct advisory judges became a topic of interest to the audience.
Most of the scores that advisory judges and online judges gave Phuong My Chi - Kha Lau were above 9, even many scores were above 9.5.
However, judge Lee Seung Hyun rated the "Story of mixed emotions X Luc Hai Vuong Vi" stage at 8.7 points - a rather low number compared to To Huu Bang (9.2 points) and Truong Luong Dinh (9.5 points).
After watching the performance, Lee Seung Hyun praised the powerful voices of the two young singers, praising the combination of rock, EDM and folk cultural materials of the two countries. He was also impressed with Phuong My Chi's fan dance.
However, Lee Seung Hyun expressed that he felt Kha Lau was not relaxed and did not feel comfortable showing off his voice, so he did not do his best in the semi-finals. Kha Lau's incomplete performance made Lee Seung Hyun regretful.
Many viewers believe that because Lee Seung Hyun is not really satisfied with Kha Lau, the score for this performance is low.

On forums, many viewers debate the 8.7 score that Lee Seung Hyun rated Phuong My Chi's team. Some opinions say that the male judge is not even qualified enough to evaluate art forms such as prose and drama.
Before that, Lee Seung Hyun could not distinguish between theater and Con khuc in Kha Lau's performance. In terms of both music and acting career, Lee Seung Hyun is still obscure and outstanding compared to To Huu Bang and Truong Luong Dinh.
Lee Seung Hyun was born in 1984, born and raised in the US. In 2002, Lee Seung Hyun returned to Korea and debuted in idol group T.A.K.E. After 4 years of no outstanding activities, he terminated his contract with a management company in Korea and switched to operating in the Chinese market.
Over the years, he has had few outstanding activities, only participating in reality TV shows about marriage with his wife - actress Thich Vy - and performing at music events.
In 2021, Lee Seung Hyun participated in Anh trai vu ngan cong gai, ranked 2nd overall. He also appeared in a number of historical films and TV series in China but did not make much of an impression.