INSaNiTY

INSaNiTY is a song by CircusP using the Vocaloids SF-A2 Miki and KAITO. It is Circus-P's first original song to be sung in Japanese and is one of his most famous works.

Background
The original video was uploaded on Youtube on April 11, 2011, a month before CircusP closed his original account. Later on, it was reuploaded on YouTube by a fan.

The song was well received, earning a place in the Weekly Vocaloid Ranking #185. Also received various covers (Vocaloid and UTAU) and many fanarts as well.