K.K. Rally
From Nookipedia, the Animal Crossing wiki
"K.K. Rally" (けけおんど, K.K. Ondō) is a relaxing, slow-paced song with an exotic feel. It is made up of many instruments including drums. Tom, Hamphrey, Flip, Peewee (in Animal Crossing: New Leaf), Boots and Buzz (the latter two as of Animal Crossing: New Leaf - Welcome amiibo) have this in their house.