, born October 31, 1981 in Niigata

Niigata, Niigata

is the capital and the most populous city of Niigata Prefecture, Japan. It lies on the northwest coast of Honshu, the largest island of Japan, and faces the Sea of Japan and Sado Island....

, Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

, is a former singer. She was the leader of Melon Kinenbi

Melon Kinenbi

was an all-girl Japanese pop group within Hello! Project. They were formed after they successfully passed the 2nd Morning Musume & Michiyo Heike Imotobun Audition. Melon Kinenbi is the oldest group in the history of Hello! Project not to have changed any of its members since its formation...

, an all-girl J-pop

J-pop

, an abbreviation for Japanese pop, is a musical genre that entered the musical mainstream of Japan in the 1990s. Modern J-pop has its roots in 1960s music, such as The Beatles, and replaced kayōkyoku in the Japanese music scene...

 group formerly within Hello! Project

Hello! Project

is the umbrella name for all female idol Japanese pop recording artists collective that are under contract with the Up-Front Group. The "mothership" group of Hello! Project is the super-group Morning Musume. Hello! Project's current leader is Risa Niigaki, the leader of Morning Musume...

, until its disbandment in 2010. She is also a former member of Hello! Project's futsal

Futsal

Futsal is a variant of association football that is played on a smaller pitch and mainly played indoors. Its name is a portmanteau of the Portuguese futebol de salão and the Spanish fútbol de salón , which can be translated as "hall football" or "indoor football"...

 club, Gatas Brilhantes H.P.

Gatas Brilhantes H.P.

is the Hello! Project futsal club.- History :On April 23, 2007, nine new members from Mix Gatas were added to the team mainly from Berryz Kobo and °C-ute with one member from Hello! Project Eggs....

In August 2010, less than three months after Melon Kinenbi's disbandment, Saito married comedian Jirō Hachimitsu (born Jirō Takano) of duo "Tokyo Dynamite".

Photobooks

#	Title	Release date	Publisher	ISBN
1		2003-08-07	Wani Books	ISBN 4-8470-2770-1

TV shows

Show	Start date	End date

} || 2003-03-31 || 2003-09-27
|-
| || 2004-11-16 || 2004-11-22
|-
| || 2005-08-18 || Still running
|}

Radio

Program	Start date	End date

} ||align="center"| 2005-09-12 ||align="center"| Still running
|}