Formed in June 2010 as 【 】 , the band started its activities in 2010/06/26 @ 新宿LOFT.
On 2010/09/25 live at 本八幡ROUTE14, the band name was officially changed to カッコー (cuckoo).
In November 2010, The band will begin their first country-wide tour「カッコーの巣の上で」, beginning from Sapporo and performing in total of 4 cities.
The band will also release its first mini-album the same month.
Vo. コバヤシシャラク (a.k.a 小林写楽) [メトロノーム → 無恥鞭アナゴ → FLOPPY]
Gu. サクライアヲ (a.k.a 桜井アヲ, 桜井青) [ex-cali≠gari → FIGURE'71 → lab. → LAB. THE BASEMENT]
Dr. ササブチヒロシ [ex-STEP UP → MAGNITUDE9.8 → Velvet Blue → JILS (support) Plastic Tree → the studs (support)]