CiRCuS MoNSTeR

Background
The original video was uploaded onto YouTube on April 16, 2010 and was later uploaded onto Nico Nico Douga. The song became popular and ranked on the Weekly Vocaloid Rankings, making it CircusP's first song to be ranked on the chart. The song also made him more well known in both the Japanese and the English Vocaloid Fandom and received a lot of fanarts and Vocaloid and UTAU covers. Later on, a Japanese version of the song was made, as well as a music box version. The song was also used as one of Oliver's demos.