私ノ七ツノオ祝イニ (Watashi no Nanatsu no Oiwai ni)



On My Seventh Birthday is a song sung by Miku Hatsune and Gumi Megpoid. It is the two-hundred-and-seventieth track in Other Vocaloid Songs 15: Mostly Gumi Volume 2 and the two-hundred-and-seventy-fifth track in Other Vocaloid Songs 23: Greatest Hits Of Miku Volume 7.