Sexy 8 Beat

Sexy 8 Beat (stylized as SEXY 8 BEAT) is the eighth studio album by the J-pop girl group Morning Musume.

Overview
It is the first album to feature 8th generation member Aika Mitsui and the last full-length studio release to feature 4th generation member Hitomi Yoshizawa as the group's leader and 6th generation member Miki Fujimoto as both the group's subleader. The album was released on March 21, 2007.

The album features the band's previous four singles "Aruiteru" (which also appeared on the EP 7.5 Fuyu Fuyu Morning Musume Mini! in December 2006), "Egao Yes Nude", "Sexy Boy: Soyokaze ni Yorisotte" and "Ambitious! Yashinteki de Ii Jan". Also, as with Rainbow 7 and 7.5 Fuyu Fuyu..., tracks by four different sub-factions of the group are featured, including a solo track by Yoshizawa and the third pairing of Sayumi Michishige and Koharu Kusumi as their alter-egos "Shige-pinku" and "Koha-pinku" (first established on Rainbow 7 ' s "Rainbow Pink").

The limited edition of the album includes a DVD; a bonus CD was also rumored for this edition but never materialized. The first pressing of the regular edition came with two photo cards.

Bonus DVD (Limited edition only)
Tracks 2 and 3 on the DVD were recorded live at Hello! Project's 2007 Winter Wonderful Hearts Otome Gokoro concert.

Vocals

 * Hitomi Yoshizawa – except tracks 5, 9 and 10
 * Ai Takahashi – except tracks 5 and 10
 * Risa Niigaki – except tracks 5 and 10
 * Miki Fujimoto – except tracks 5 and 10
 * Eri Kamei – except tracks 9 and 10
 * Sayumi Michishige – except tracks 5 and 9
 * Reina Tanaka – except tracks 5 and 10
 * Koharu Kusumi – except tracks 5 and 9
 * Aika Mitsui – except tracks 2, 6, 7, 8 and 10
 * Asami Konno – tracks 6 and 7, uncredited
 * Makoto Ogawa – tracks 6 and 7, uncredited
 * Tsunku – chorus (tracks 2, 4, 6, 9, 10, and 11)
 * Hiroaki Takeuchi – chorus (tracks 1, 2, 3, 4, 6, 7, 10, and 11)
 * Chino – chorals (tracks 5 and 9)

Arrangers

 * Hideyuki "Daichi" Suzuki – tracks 1 and 2; programming and guitar
 * Shōichirō Hirata – track 3; programming
 * Hiroshi Matsui – track 4 and 11; programming and keyboards
 * Yuichi Takahashi – tracks 5 and 6; programming and guitar
 * Kōichi Yuasa – track 7; programming
 * Akira – track 8; programming
 * Takashi Morio – track 9; programming
 * Shunsuke Suzuki – track 10; programming and guitar

Instruments

 * Yoshinari Takejō – tenor saxophone (track 2)
 * Kōji – guitar (tracks 7 and 9)
 * Akio Suzuki – saxophone (track 11)
 * Kōichi Korenaga – guitar (tracks 4 and 11)