Dr. Υ

Dr. Υ is a song sung by Rin Kagamine, Kaito Fuga, Meiko Haigo, and Miku Hatsune. It is the one-hundred-and-sixteenth track, the one-hundred-and-seventeenth track, the one-hundred-and-eighteenth track, and the one-hundred-and-nineteenth track in Other Vocaloid Songs 97.