私ハ二人ノオ祝イニ (Watashi wa Futari no Oiwai ni)



To Celebrate You Two, I'm Here is a song sung by Miku Hatsune and Gumi Megpoid. It is the two-hundred-and-seventy-first track in Other Vocaloid Songs 15: Mostly Gumi Volume 2 and the two-hundred-and-eighty-sixth track in Other Vocaloid Songs 23: Greatest Hits Of Miku Volume 7.