K.K. Slider
From Wild World Wiki
K.K. Slider (also known as Totakeke) is AC:WW's resident songmaster. He will visit The Roost between 7:30pm and 9:00pm on Saturday nights. He will play songs for you, and at the end of a performance he will offer you a bootleg of the song he has just played. These can be played on your music player at home, giving a little ambience to your house.
You can also request songs.