is an idol group

Japanese idol

In Japanese culture, are media personalities in their teens and early twenties who are considered particularly attractive or cute and who will, for a period ranging from several months to a few years, regularly appear in the mass media, e.g...

 developed by Avex Trax

Avex Trax

, listed in the Tokyo Stock Exchange as 7860 and abbreviated as AGHD, is the holding company for a group of entertainment-related subsidiaries based in Japan...

 and Ishimori Productions

Shotaro Ishinomori

was a Japanese manga artist who became an influential figure in manga, anime, and tokusatsu, creating several immensely popular long-running series such as Cyborg 009 and Himitsu Sentai Goranger, what would go on to become part of the Super Sentai series, and the Kamen Rider Series...

 to commemorate the Kamen Rider Series

Kamen Rider Series

The is a metaseries of manga and tokusatsu television programs and films created by manga artist Shotaro Ishinomori. The various Kamen Rider media generally feature a motorcycle-riding superhero with an insect motif who fights supervillains often referred to as...

' 40th anniversary in 2011. Each of the group's current members represent one of the protagonists of the Kamen Rider Series. The group made their premiere at an event featuring members of Columbia Music Entertainment

Columbia Music Entertainment

is a Japanese record label founded in 1910 as . It affiliated itself with the Columbia Graphophone Company of the United Kingdom and adopted the standard UK Columbia trademarks in 1931. The company changed its name to Nippon Columbia Co., Ltd. in 1946. It used the Nippon Columbia name until...

's Project.R

Project.R

is a Japanese musical ensemble established by Nippon Columbia and Toei Company to perform on the soundtracks for the Super Sentai Series beginning with Engine Sentai Go-onger....

 group, the musical collaboration who provides music for the Super Sentai

Super Sentai

The is the name given to the long-running Japanese superhero team genre of shows produced by Toei Co., Ltd., Toei Agency and Bandai, and aired by TV Asahi...

 series. The group's debut songs were and . The group's debut songs were played on the DJ HURRY KENN Ride the Groove Internet radio

Internet radio

Internet radio is an audio service transmitted via the Internet...

 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

OOO, Den-O, All Riders: Let's Go Kamen Riders

is a film released on April 1, 2011, to commemorate the 40th anniversary of the Kamen Rider Series. The catchphrase for the movie is . While the film will feature all of the franchise's protagonists, the main heroes of the original Kamen Rider , Kamen Rider Den-O, and Kamen Rider OOO will be the...

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

Hiroshi Tanahashi

is a Japanese professional wrestler who works primarily for New Japan Pro Wrestling, where he is the current IWGP Heavyweight Champion in his fifth reign.-Early life:...

.

Members

Each of the Kamen Rider Girls wears the transformation belt used by the character they represent.: Kamen Rider Ryuki: Kamen Rider Blade: Kamen Rider Den-O

Kamen Rider Den-O (character)

is the primary protagonist and eponymous character of the 2007 Kamen Rider Series, Kamen Rider Den-O.-Ryotaro Nogami: is a young man with an intense streak of bad luck. Having lost his parents at a young age, he lived with his grandmother and older sister Airi, visiting his parents' library/café...

: Kamen Rider Kiva

Kamen Rider Kiva (character)

is the primary protagonist and eponymous character of the 2008 Kamen Rider Series, Kamen Rider Kiva. "Kiva" is an abbreviation for "KING OF VAMPIRE", which plays in Kiva's connections to the Fangire King. The Japanese name also comes from a reading for the word .-Wataru Kurenai: is a shy young man...

: Kamen Rider OOO

Kamen Rider OOO (character)

is the primary and eponymous protagonist of the 2010-2011 Kamen Rider Series Kamen Rider OOO. The name "OOO" is pronounced similarly to both "O's", referring to the three O's in the television series' title which represent the character's transformation items, and...

: Kamen Rider Fourze

Kamen Rider Fourze (character)

is the primary and eponymous protagonist of the 2011-2012 Kamen Rider Series Kamen Rider Fourze. Kamen Rider Fourze's name is meant to resemble the number 40, as Fourze serves as a 40th anniversary for the Kamen Rider Series and there are 40 different powers he can access...