The reason why Myungsoo chose to sing ‘That I was once by your side’ for his solo stage: Even though he was only 4 years old when it was released, the song has been one that he’s liked since he was young, and he sang it often. He thinks it’s a song that can represent his feelings/emotions well. It’s also the song he sang for his audition, and where Infinite’s L began. Because it’s a song that contains his everything, he thought that he should sing it for the concert.

부족한 부분도 많았지만, 제 인생이 담긴, 추억이 담긴 곡이예요.
Even though there were a lot of parts that were lacking, it’s a song that’s filled with my life and my memories. 

[a/n: this made me tear up a bit): ]