おめでとう、ありがとう。 (Omedetou, Arigatou.)



Happy Birthday, Thank You is a song sung by Luka Megurine, Rin Kagamine, Miku Hatsune, and Len Kagamine. It is the ninety-fourth track in Other Vocaloid Songs 9: Mostly Luka Volume 2, the two-hundred-and-ninetieth track in Other Vocaloid Songs 10: Luka And Rin, the eighty-third track in Other Vocaloid Songs 19: Greatest Hits Of Miku Volume 3, and the one-hundred-and-sixth track in Other Vocaloid Songs 25: Mostly Len.