A Vocaloid song by Hatsune Miku, written and composed by Gekko Aoki, posted on Nico Nico Douga on July 17, 2011. The cover version of Singing Cosplayer Hikari, which was released worldwide on April 20, 2021, has become a worldwide hit, ranking on the Apple Music / iTunes J-POP charts in 23 countries and No. 1 in 11 countries as of June 30, 2021. To celebrate the 10th anniversary on July 17, 2021, a remix version of the cover version of Singing Cosplayer Hikari by U-SKE ASADA has been released.