I heard this from Tune, but it says on his nico dic article too, that he's actually 17! I was really surprised!

Also his twitter is :http://twitter.com/wsw_FLChan but it seems to be more related to his DTM music stuff, which I do agree with very different than his vocaloid stuff! I think he goes under Yuki Nishijima for those works?

Sorry for being random >< I've been looking up his works again...