むてきPOP (Muteki POP)

Unrivaled Pop is a song sung by Miku Hatsune, Rin Kagamine, and Len Kagamine. It is the one-hundred-and-thirty-eighth track, the one-hundred-and-thirty-ninth track, and the one-hundred-and-fortieth track in Other Vocaloid Songs 57: Making A Comeback Volume 5.