Threee (すりぃ, Surii) is a VOCALOID producer who is active on YouTube and Niconico. An all-around composer, he can adapt to various types of musical styles. He mainly uses Len, though he also uses Miku and Rin.

Notable songs from this producer include "Telecaster B-Boy". "Ego Rock", and "Lavie".

He is also a member of the J-rock band, Aooo. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.