Singer Lee Chan-won has elevated the quality of his performances by revealing his side as a "Detail Master" ahead of his solo concert, 'Chan-ga: A Radiant Day.'

On the 11th, a rehearsal behind-the-scenes video was released on Lee's official YouTube channel, capturing his intense dedication to creating a flawless stage.

Throughout the video, Lee maintained a serious and focused attitude. While rehearsing Cho Yong-pil’s "Forgotten Love," he personally checked the balance between the chorus volume and instrumental sounds during the climax, requesting specific adjustments. His professional approach, extending beyond singing to managing the overall acoustic design, deeply impressed the staff on-site.

Lee also showed great passion for timing his remarks with the music down to the second to maximize the impact of the "Paper Plane Toss" event. He went as far as personally adjusting the teleprompter text and agonizing over the length of the outro to ensure fans could fully savor the lingering emotions of the performance.

Despite it being a rehearsal, his vocal prowess was unwavering. He performed various genres, including "You Are My Man," with the same energy as a live show, filling the empty arena with his powerful voice.

Fans reacted enthusiastically, commenting, "His perfectionism in the rehearsal is captivating," and "You can feel his love for the fans even behind the scenes."