Vocaloid! - Actual singers?

Vocaloid is really getting to me!

Today, I just found out from a friend of mine, that there are also real life Vocaloids!

And here I thought it was just contributing Jap singers' voices. (e.g. Piko)

But they give them selves made names and made characters (not fan made based ones).

Examples include Nero, Clear, Faneru and Gero. And many more out there.

Nero & Clear - http://www.zerochan.net/326020

Fuaneru & Gero - http://www.zerochan.net/139202

Sekihan - http://www.zerochan.net/388491

Gurutamin (top left), Nero (top right), Yuu (bottom right) and Amu (bottom left) - http://www.zerochan.net/359339

They have really good voices (I'm not so sure about Fuaneru and Gero) . Most of them are male (and they're hot too) but there are some females as well such as Wotamin.

Clear x Wotamin - http://www.zerochan.net/370052 

Some of the clips that are sung with the male singers tend to depict yayoi.

These 'Vocaloids' go by Nico Nico Singers or Nico Nico Douga.

The Nico Nico part reminded me of this site which I would download some of the Vocaloid songs from. I think it was called Nico video, a Japanese version of youtube. Apparently, most of the videos of Vocaloid seen on Youtube come from that site.