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[Joynews24 reporter Lee Ji-young] IU and Byun Woo-seok performed a duet.
On the 23rd, IU uploaded a video to her YouTube channel featuring Byun Woo-seok, Lee Yeon and Yoo Soo-bin.
In the video, the four chatted and sang some of their favorite songs, creating a warm, convivial atmosphere.
Byun drew particular attention when he joined IU for a duet. He selected “It’s You” — the song previously performed by IU and Sung Si-kyung — and IU said, “That’s a difficult song, so I was surprised you chose it.”
Byun explained his choice: “When I read the lyrics, I felt they closely reflected Hee-ju and Wan’s story. The song’s tone also echoed the drama’s resolution, which is why I picked it.”
IU agreed, saying, “I kept thinking about the wall-kiss scene from episode three. That moment kept coming to mind while I practiced.”
The pair channeled Wan and Hee-ju’s emotions into their performance. When the song ended, Lee Yeon and Yoo Soo-bin applauded in admiration. Byun admitted, “I was so nervous my hands were sweating. I’ve never sung while maintaining direct eye contact — it was an amazing experience,” and even showed his damp hands.
IU shared a behind-the-scenes detail, saying, “After his schedule, Woo-seok came to the rehearsal room late at night to practice.” Byun expressed gratitude, noting he had asked to rehearse together and appreciated that she came willingly.
IU praised his commitment: “When he said he would come to practice, I felt his sincerity. Later he left the sheet music, and it was filled with notes. I was really touched when I saw that.”
Viewers flooded the comments, asking why the two don’t have an OST duet and saying they keep replaying the clip. Sung Si-kyung also praised them, saying, “They’re better than me.”
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