Seojin Park and Yudai demonstrate charisma and leadership. The MBN program "2025 Korea-Japan King of Singers Battle," premiering on September 2nd, commemorates the 60th anniversary of Korea-Japan diplomatic relations. Produced by CREA Studio, it features the top 7 active reigning kings of singers from "Active King of Singers Japan" and the top 7 active reigning kings of singers from South Korea competing as representatives of their respective countries. This competition is the world's only Korea-Japan national music showdown, held with the pride of both nations at stake.

Seojin Park is a trot idol with a powerful fandom, while Yudai is a rising star in the J-band scene and the vocalist of Novelbright, who has achieved 2 billion streams. As the number one representatives from Korea and Japan, the two face off, creating tension. Notably, even before stepping on stage, Seojin Park and Yudai are aware of each other's presence and engage in a psychological battle. They smile brightly while warming up their voices, heightening the tension. Active singers from both countries respond to their rivalry by saying, "Those two are no joke."

When they take the stage, Seojin Park and Yudai, both born in 1995, express their delight at meeting each other. Seojin Park vows to show "how to enjoy the stage," while Yudai declares his intention to prove "this is what a Japanese artist is." They reveal their sense of mission as the number ones from Korea and Japan, promising fierce competition.

As anticipation for their performances rises, the audience erupts with ear-piercing cheers. They prove their extraordinary popularity, and the Korea-Japan masters also respond with "This is incredible." Seojin Park impresses the Japanese team's active singers with a passionate, almost possessed janggu performance. Yudai ignites the crowd to their feet by explosively delivering the rock spirit of the song that marked his breakthrough, which sold out all seats during his arena tour.

The production team stated, "Seojin Park and Yudai, both born the same year and rising from street unknowns to national representatives, created an unprecedented stage with their fiery passion and determination that cannot be compared." They are expected to showcase their musical talents and move the audience. Through the program's broadcast, viewers can witness the passion and rivalry of these two artists firsthand.