List:Yaguchi Mari Discography Featured In

Morning Musume

 * Summer Night Town (Debut)
 * Daite HOLD ON ME!
 * Memory Seishun no Hikari
 * Manatsu no Kousen
 * Furusato
 * LOVE Machine
 * Koi no Dance Site
 * Happy Summer Wedding
 * I WISH
 * Ren'ai Revolution 21
 * The☆Peace!
 * Mr.Moonlight ~Ai no Big Band~
 * Souda! We're ALIVE
 * Morning Musume Single Medley ~Hawaiian~
 * Do it! Now
 * Koko ni Iruzee!
 * Morning Musume no Hyokkori Hyoutanjima
 * AS FOR ONE DAY
 * Shabondama
 * Go Girl ~Koi no Victory~
 * Ai Araba IT'S ALL RIGHT
 * Roman ~MY DEAR BOY~
 * Joshi Kashimashi Monogatari
 * Namida ga Tomaranai Houkago
 * THE Manpower!!
 * Osaka Koi no Uta (last)

Tanpopo

 * Last Kiss
 * Motto
 * Tanpopo (Single Version)
 * Seinaru Kane ga Hibiku Yoru
 * Otome Pasta ni Kandou
 * Koi wo Shichaimashita!
 * Oujisama to Yuki no Yoru

Minimoni

 * Minimoni Jankenpyon! / Haru Natsu Aki Fuyu Daisukki!
 * Minimoni Telephone! Rin Rin Rin / Minimoni Bus Guide
 * Minihamus no Ai no Uta
 * Minimoni Hinamatsuri! / Mini Strawberry Pie
 * Ai~n Taisou / Ai~n! Dance no Uta
 * Genki Jirushi no Oomori Song / Okashi Tsukutte Okkasui~!
 * Minihamus no Kekkon Song

ZYX

 * Iku ZYX! FLY HIGH
 * Shiroi TOKYO

Morning Musume Sakura Gumi

 * Hare Ame Nochi Suki♥
 * Sakura Mankai

Aoiro 7

 * Aoi Sports Car no Otoko

7nin Matsuri

 * Summer Reggae! Rainbow

Sexy 8

 * Shiawase Desu ka?

11WATER

 * BE ALL RIGHT!

ROMANS

 * SEXY NIGHT ~Wasurerarenai Kare~

H.P. All Stars

 * ALL FOR ONE & ONE FOR ALL!

Ganbarou Nippon Ai wa Katsu Singers

 * Ai wa Katsu

Dream Morning Musume

 * Shining Butterfly

Hexagon All Stars

 * Bokura ni wa Tsubasa ga Aru ~Oozora e~

Afternoon Musume

 * Gouhoubi no Afternoon Coffee

Morning Musume

 * First Time
 * Second Morning
 * 3rd -LOVE Paradise-
 * Best! Morning Musume 1
 * 4th "Ikimasshoi!"
 * Hawaiian de Kiku Morning Musume Single Collection
 * No.5
 * Best! Morning Musume 2
 * Ai no Dai 6kan
 * Morning Musume Early Single Box
 * Hatachi no Morning Musume

Tanpopo

 * TANPOPO 1
 * All of Tanpopo

Minimoni

 * [2002.06.26] Minimoni Song Daihyakka 1kan
 * [2004.02.11] Minimoni Songs 2

Dream Morning Musume

 * [2011.04.20] Dorimusu ①

Hello! Project

 * Petit Best ~Ki Ao Aka~
 * Together! -Tanpopo・Petit・Mini・Yuko-
 * The Douyou Pops 1 Christmas to Fuyu no Uta Shuu
 * Petit Best 2 ~3・7・10~
 * The Douyou Pops 2 Haru no Uta Shuu
 * The Douyou Pops 3 Natsu no Uta Shuu
 * The Douyou Pops 4 Aki no Uta Shuu
 * CLUB Hello! TRANCE REMIX
 * Shinsaku Douyou Pops 1
 * Petit Best 3
 * Shinsaku Douyou Pops 2
 * FS4 FOLK SONGS 4
 * Hello! Project Radio Drama Vol. 1
 * Hello! Project Radio Drama Vol. 2
 * Petit Best 4
 * Hello! Project Radio Drama Vol. 4
 * Petit Best 5
 * Petit Best 10
 * Hello! Project no Zenkyoku kara Atsumechaimashita! Vol. 1
 * Hello! Project no Zenkyoku kara Atsumechaimashita! Vol. 2

Hexagon All Stars

 * We Love ♥ Hexagon 2009
 * We Love ♥ Hexagon 2010
 * We Love ♥ Hexagon 2011

Group Songs

 * [2001.10.17] Moukichi and Nyorota no Theme Song
 * [2001.10.17] Dai Scoop
 * [2001.10.17] Dekinai Koto wa Nai!
 * [2001.10.17] Hard Training
 * [2002.03.27] Hajimete no Rock Concert
 * [2003.03.26] Megami ~Mousse na Yasashisa~ (Original Long Ver.)
 * [2003.03.26] "Sugoku Suki na no ni…ne"
 * [2004.05.28] Do it! Now
 * [2004.09.14] Summer Night Town
 * [2004.12.04] Ii Koto Aru Kinen ni Shukan
 * [2004.12.08] Haru no Uta
 * [2011.04.20] Roman ~MY DEAR BOY~
 * [2011.04.20] Morning Coffee (2011 Dreamusu Ver.)
 * [2011.04.20] SEXY BOY ~Soyokaze ni Yorisotte~
 * [2018.02.07] WE ARE LEADERS! ~Leader tte no mo Tsurai Mono~