Genderbent Vocaloids

Genderbent Vocaloids are Vocaloids with the gender switched. This is very common among American fandom. Usually Genderbent Vocaloids are actually Vocaloid songs pitch-changed to create a male or female song; they are rarely songs made with a different voice configuration.

Mikuo Hatsune (初音ミクオ)
Mikuo is Miku's genderbend. Personality-wise, he has no differences from Miku besides the fact that he is male, and that he carries a masculine and lower pitch of Miku's voice. He wears black trousers instead of Miku's skirt. His hair is usually loose and short, though some users draw him with two pigtails in the same manner as Miku's. Mikuo is drawn either in the same body size as Miku herself (in the same style as Rin &amp; Len) or much older and bigger, with about the body size of Kaito. Sometimes he is seen as Miku's older brother, although this is rare. Here is a video featuring him.

Kaiko (カイコ)
Kaiko is Kaito's genderbend (sometimes his sister, presumably the youngest in their family), using an octave (sometimes two) higher than Kaito. She is almost a female replica of Kaito. Two designs of Kaiko exists; one is the original Kaiko inspired from the anime and game Idolmaster (complete with a diagram), while the other one is a variant of Kaito's clothes. Kaiko sometimes uses her brother's assumed surname, Shion.

Meito (メイト)
Meito is the male version of Meiko carrying a masculine version of her voice. Sometimes he also carries his look alike's assumed surname, Sakine. This is how he looks like and the younger Sakine version can be seen here.

Gakuko Kamui (神威がくこ)
Gakuko is the female version of Gakupo, using a higher octave of his voice, with occasionally some Gender Factor adjustment. Depicted as wearing traditional kimono, while keeping trademark traits and accessories of Gakupo intact.

There are known variations to this costume however, like this, this, and including a feminine touch in Gakupo's default outfit. This is also another example of a more feminine version of her. Here is an example of Gakuko singing.

Luki Megurine (巡音ルキ)
Luki is Luka's male counterpart. his hair is short and pink, has the same headphones as Luka and same eye color. He has the same clothes as Luka except he wears black pants. He sings one or two octaves lower than Luka. Examples of his singing can be found here (Youtube playlist), and  is what he looks like. Some people prefer to call him "Luke" (ルク), but this is rare.

Gumo (グモ)
Gumo is Gumi's male counterpart. He has sloppy green hair and goggles. Here is a video with his voice.

Spicy Andy
Spicy Andy is Sweet Ann's male equivalent. A magician. Called "Pepper jack" due to his flavor being Spicy.

Main Article and detailed information : Spicy Andy

Akinos
Akinos is Sonika's genderbend. Here is an example of his singing.

Wiriam
Wiriam is the genderbent version of Miriam. He is depicted with silver hair, lime-green eyes, and matching green headband. His voice is a lower version of Miriam’s, and can be heard in this video, which he does the lead vocals with Gakupo as a backing voice. Other songs Wiriam has contributed in can be heard here and here. is how he looks like.

SF_A2_MITO.png-A2 Mito
the genderbent version of SF A2 Miki.He is also called Sf-A2 Mikio,Mikiyo or Miko. He has short hair with a long ponytail. It has a white short-sleeved jacket.His eyes are orange. The sounds like a mix of boys and girls.His voice comes from miki.

You can hear your voice here