Kamen Rider Girls (仮面ライダーGirls, Kamen Raidā Gāruzu) are an idol group developed by Avex Trax and Ishimori Productions to commemorate the Kamen Rider Series' 40th anniversary in 2011.[1] Each of the group's current members represent one of the protagonists of the Kamen Rider Series.[2] The group made their premiere at an event featuring members of Columbia Music Entertainment's Project.R group, the musical collaboration who provides music for the Super Sentai series.[3] The group's debut songs were "Koi no Rider Kick" (恋のライダーキック, Koi no Raidā Kikku, "Love's Rider Kick") and "Heart no Henshin Belt" (♡（ハート）の変身ベルト, Hāto no Henshin Beruto, "The Heart's Transformation Belt").[2] The group's debut songs were played on the DJ HURRY KENN Ride the GrooveInternet radio program, the successor to the Wind Wave radio programs from the Kamen Rider W series. The group's debut single is "Let's Go RiderKick 2011", serving as the theme song for OOO, Den-O, All Riders: Let's Go Kamen Riders with "Koi no Rider Kick" and "Heart no Henshin Belt" as the single's B-sides. A second single titled "KAMEN RIDER V3" was released on August 3, 2011 with the PV having a cameo by Hiroshi Tanahashi.[4]
