SOOOO (そう) is a Japanese Negative Composer and a Vocaloid producer, who uses human negative elements such as darkness, sadness, passion, despair and shouting in his work. Most of his songs feature the Vocaloid Kagamine Len, however has used other Vocaloids such as Kagamine Rin and Oliver in few of his songs.

His first digital release was the EP 'Happppy songs' in August 13, 2018. He has then released his second digital release, of the album 'minus in the sun (Remastered Edition)' in February 21, 2019. Originally, this was SOOOO's 2016 works released only in Japan by CD. It was sold out now and impossible to obtain for a while, but these sounds were remastered by SOOOO on his own afterwards. Finally it was distributed to the world 3 years later. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.