Vocaloid All Stars

Hatsune Miku: Hi there, guys, I'm Hatsune Miku from Crypton Future Media, Japan.

Kagamine Rin: I'm Rin Kagamine and this is my twin brother Len.

Kagamine Len: My last name's the same as hers.

Megurine Luka: I'm Megurine Luka, one of Miku's close friends.