Actually, I couldn't find no version of this music sung by Len Kagamine, but I just had to do this drawing! The original song is from Hatsune Miku.
Maybe someone can become motivated to make a version because of this drawing?
And Kaito is his poor victim XD
Len Kagamine and Kaito from Vocaloid.
made a Len version, check it out! - [link]
Thanks a lot for the comments! ^_^