10 years ago, Duc Phuc won the Voice championship under the guidance of singer My Tam.
After the competition, they still maintain a close relationship, accompany and encourage each other in their careers.
In 2022, singer My Tam humorously revealed that for the past 6-7 years, although they were close, because Duc Phuc called My Tam "her", the female singer felt "old", so she did not sing a duet or combine.
Duc Phuc said he called musician Duc Tri "anh", but for singer My Tam, it was always "her", because he wanted to show the solemnity and respect of his students for the teacher who helped the male singer be crowned in The Voice 2015.
When participating in Anh trai say hi, Duc Phuc admitted that as a My Tam student, he was worried and worried because if he did something bad, it would make his teacher sad.
The 9X singer thought optimistically: "I still think about how to make Ms. My Tam proud. Of course, those thoughts are always in my heart, but I choose to look at things more positively."

The relationship between My Tam and Duc Phuc is so close that the male singer's family is always grateful and caring for My Tam.
After Duc Phuc became the Intervision 2025 Champion, Mr. Nguyen Van Trung - the male singer's father - thanked those who helped his child and sent his condolences to My Tam.
Mr. Trung shared: "It would be a mistake if I did not say these things with gratitude from the bottom of my heart".
"That Hammer changed the fate of a person, that is Duc Phuc today. Talking about the love of teachers and students and the communication and training that Ms. Tam gave Duc Phuc, no pen can describe it, only the people involved can understand that", Mr. Trung wrote.
After the competition, Duc Phuc said he chose the song "Phu Dong Thien Vuong" because he wanted to bring a story, a performance with strong Vietnamese identity. The singer proudly said that Phu Dong Thien Vuong is a symbol of the strength, resilience, and flexible spirit of the Vietnamese people.
From there, Duc Phuc and the crew thought about combining epic elements with modern music, creating a performance that was both close to Vietnamese audiences and brought a close breath to international music so that international friends could easily access and understand Vietnamese culture.