Bubblegum K.K.

"Bubblegum K.K." is a K.K. Slider song that first appears in. It is upbeat and the melody is characterized by pitch bends and major key chords, though the live version includes a brief, calm interlude. As the song's Japanese name of "Idol" suggests, it is based on culture and. Its English name may come from, which refers to pop music with an upbeat sound.

Album cover
The album cover for "Bubblegum K.K." features Francine and Chrissy against a pink background with silhouettes of K.K. Slider's head. In, the text at the top of the cover is illegible, although it seems to be loosely based on the Japanese katakana title, "けけアイドル" (Keke aidoru, K.K. Idol). In, the text reads "Bubblegum."

In
In, "Bubblegum K.K." is played in the houses of Cece, Gayle, Graham, Penelope, Rilla, Rosie, and Viché. It also plays in Lottie's RV. Additionally, Graham has the aircheck of the song's live performance placed as a piece of furniture inside of his house. A short loop of the aircheck version of "Bubblegum K.K." plays on the Karaoke System.

In
In, "Bubblegum K.K." is played in the houses of Bonbon, Chrissy, Cookie, Gayle, Graham, Penelope, Rilla, Rosie, Tutu, and Twiggy. Additionally, Graham has the aircheck of the song's live performance placed as a piece of furniture inside of his house.

In, "Bubblegum K.K." is played in the houses of Cookie, Ketchup, Maddie, Margie, and Rosie.

In
In, "Bubblegum K.K." is played in the houses of Chrissy, Felicity, Francine, Harriet, and Rosie.

In Animal Crossing × Mario Kart 8
In Mario Kart 8 in the Spring version of the Animal Crossing course, K.K. Slider is present across from the museum and performs a short loop of "Bubblegum K.K.", though it can be difficult to hear with the background music on top.

In
"Bubblegum K.K." is remixed and combined with 's title theme in. It plays on the Town and City stage. The remix was arranged by Atsuko Asahi, the original composer.

In
The remix of "Bubblegum K.K." returns in and can be played on any stage.

In other media
A piano solo sheet music book released in Japan by Yamaha titled "やさしくひける どうぶつの森 スーパーベスト" featured sheet music for "Bubblegum K.K."

On August 2020, VOCALOID producer and composer OSTER Project published on her NicoNico Douga, an extended arrangement version cover of Bubblegum K.K. with lyrics sung by the VOCALOIDs Hatsune Miku and Kagamine Rin.