Do Kyungsoo's "Popcorn" has recently been climbing the charts, ranking high on major music platforms. This song is a track from Do Kyungsoo's third mini-album "Growth," released in May 2024, featuring lyrics that compare the excitement of a loving moment to the popping of popcorn. The whistle sound, lively rhythm, and Do Kyungsoo's smooth vocal tone combine to enhance the song's charm.

On the music site Melon, "Popcorn" gained attention from early April, ranking 28th on the Hot 100 and 18th on the TOP 100 (as of April 15). On Bugs, it reached a daily peak of 5th place and currently remains within the top 10, while rankings on other major platforms such as FLO and Genie have also risen simultaneously.

Do Kyungsoo filmed additional content for Dingo Music's YouTube "Vertical Live," releasing a 2026 version live performance of "Popcorn." This further increased the song's buzz and public interest.

Listeners responded with comments like "Do Kyungsoo's voice is spring itself," "Sweet vocal tone is amazing," "A song that automatically plays when I see cherry blossoms," "Perfect for a day like today," and "It fits the recent weather perfectly." The song's warm emotion and spring season vibe have led to its recognition as a representative track for the spring season.