A contestant on the Vietnamese program "Unexpected Transformation" received a perfect score for her performance of the song "Trống vắng." Lê Mai Anh impressed the judges with her striking resemblance—in voice and style—to the iconic singer Phương Thanh, whom she idolizes. The performance was lauded for its accuracy and ability to capture the essence of the original artist. Judges specifically highlighted how closely Mai Anh mirrored Phương Thanh's unique vocal delivery. This perfect score demonstrates Mai Anh’s talent for impersonation and successful tribute to a beloved Vietnamese singer. The contestant’s performance has become a talking point of the show due to the compelling impression.