User:Petewarrior/Hinatazaka46

Hana-chans
Members: Suzuka Tomita, Konoka Matsuda

Hana-chans (花ちゃんズ) is an acoustic guitar duo unit, named after the flower (花) kanji in both members' names. Their first song as a duo, "Masaka Guuzen..." (まさか偶然・・・), was released as part of Hinatazaka46's third single.

On June 27, 2021, Hana-chans held their first independent live show on MTV Japan, titled MTV Acoustic Flowers -Until Full Bloom "Bell & Like"-, in which they covered Hinatazaka46 songs and Taylor Swift's "We Are Never Ever Getting Back Together". On October 5, they served as the opening act for MTV Live Match 2021, and also performed with Hinatazaka46 for the main event.

Saitama Trio/Color Chart
Members: Miku Kanemura, Akari Nibu, Miho Watanabe

The Saitama Trio (埼玉トリオ), or, is the unofficial name for the three Hinatazaka46 members, all from the second generation, who are natives of Saitama Prefecture.

The Saitama Trio are occasionally involved in the prefecture's public relations activities. In September 2018, they served as one-day traffic chiefs of the Saitama Prefectural Police to promote traffic safety. In November 2020, they joined the Saitama Supporters Group (埼玉応援団), a public relations group consisting of popular artists from the prefecture.

In October 2020, it was announced that the trio would become voice actresses for the animated miniseries based on the character Pickles the Frog (ピクルス ザ フロッグ).

In February 2021, the Saitama Trio were voted the most wanted unit (subgroup with their own songs) by fans on a Twitter campaign to commemmorate Hinatazaka46's second debut anniversary. Hinatazaka46's sixth single, released in October 2021, would include their first song as a trio, "Akubi Letter" (あくびLetter), performed under the unit name Color Chart (カラーチャート); the name is a reference to a nickname for Saitama Prefecture, "Land of Colors" (彩の国).