K.K. Rock
From Nookipedia, the Animal Crossing wiki
K.K. Rock is like a hard rock type of song with the same tune repeating over and over again. It has an edgy guitar that makes it sound like heavy metal. It has a crunchy metallic theme with gritty, off-key chords. Apollo (NL), Camofrog, Fuchsia, Lobo, Tiffany and Woolio have this song playing in their houses.