Imperial K.K.
From Nookipedia, the Animal Crossing wiki
"Imperial K.K." (ăăăăŁă¤ă, K.K. China) is a song played by K.K. Slider at The Roost on Saturdays. It is based on the traditional Chinese orient style of music. It has a gong, a few Asian gamelans, lutes, horns, and other Asian percussion. Pekoe appears on the cover holding a fan and wearing what is possibly a cheongsam. Alfonso, Chester, Pinky, Drago, Pekoe, Cousteau, Jubei, and Tammi all play this song in their homes.