Kamui Gakupo is a male.
Japanese singer Gackt.
Gackpoid does not have an official age and most VOCALOIDs don't.
Apparently Kamui Gakupo was resurrected from the dead into the Vocaloid system, as so the case in Story of Evil. So, he might be around the age of 24-32, taken from the youth in his looks.
Piko is a male Vocaloid character. He is often portrayed as a young boy with a high-pitched singing voice.
Oliver is the first English Vocaloid he was voiced by a young Brittish boy
Officially, Megpoid Gumi does not like anyone. However fans have paired her up with just about any Vocaloid including, Gakupo, Kaito, Megurine Luka, etc.
Gackpoid was released 31 July 2008 so as of this writing, the software will be turning 4 years old in 2012. The character itself, Gakupo, does not seem to have an official age.
Kagamine Len, 14, of Yamaha's-powered Vocaloid Engine 2, created by Crypton, is a male. But the person who does lens voice is also played by the person who plays rin kagamine who is a female, but his character is a male
No
Ke$ha.
IA's male version is IO.
Utatane Piko (not to be wrong with PIKO, the voice actor of Utatane Piko and a professional singer) is said to be bisexual. Piko's gender depends on your thoughts. He/she could sing both manly and girly as you use the Vocaloid Programme of him/her.