きらきらメリークリスマス (Kirakira Merry Christmas)

Kirakira Merry Christmas is a song sung by Rin Kagamine and Iroha Nekomura with Miku Hatsune, Sato Sasara, ONE, IA Akasaka, LUMi, and Miki Furukawa. It is a Niconico only song.