2009

2009 was the year when the Elder Club graduated. It is also the year Kusumi Koharu graduated from Morning Musume and Hello! Project, Arihara Kanna left and Umeda Erika graduated from ℃-ute and Hello! Project, and S/mileage was formed.

Members

 * January ?: Sugiura Riho graduates from Canary Club
 * March 1: Da Xiao Jie is formed
 * March 27: Guardians 4 is formed
 * March 31: Elder Club graduates from Hello! Project
 * April 4:
 * S/mileage is formed
 * Sato Ayano joins Hello! Pro Egg
 * Sezaki Azusa is announced as a Hello! Pro Egg member but soon withdraws
 * March 27: MilkyWay and SHIPS disband
 * May 26: Aa!, Minimoni, Petitmoni, Tanpopo, v-u-den, and ZYX are revived
 * June 7: Katsuta Rina and Hirano Tomomi join Hello! Pro Egg
 * June 21: Jang Da Yeon joins Hello! Project Korea
 * July 11: Arihara Kanna leaves ℃-ute and Hello! Project
 * July 25: Nakayama Nana leaves Hello! Project
 * August 30: Sawada Yuri leaves Hello! Project
 * September 23: Noto Arisa graduates Hello! Pro Egg and joins Up-Front Egg
 * October 25: Umeda Erika graduates from ℃-ute and Hello! Project
 * October 30: Inaba Atsuko leaves Hello! Project
 * November 23: Takagi Sayuki and Tanabe Nanami join Hello! Pro Egg
 * December 6: Kusumi Koharu graduates from Morning Musume and Hello! Project
 * YuiKaori is formed
 * MM Gakuen Gasshoubu is formed
 * Team DEKARIS is formed
 * Team DEKARIS is formed

Singles

 * January 7: Shiawase no Katachi - THE Possible
 * January 14: Bye Bye - Satoda Mai with Goda Kyodai
 * January 21: co・no・mi・chi - Buono!
 * February 4: Hapi☆Hapi Sunday! - Kusumi Koharu
 * February 11: Chocolate Damashii - Matsuura Aya (last)
 * February 18: Naichau Kamo - Morning Musume
 * February 25:
 * Kenchana ~Daijoubu~ - Maeda Yuki
 * Shugo Shugo! - Shugo Chara Egg! (last)
 * March 11: Dakishimete Dakishimete - Berryz Koubou
 * March 18: Otome no Inori - Mano Erina (major debut)
 * March 25: Seishun Boku - Yaguchi Mari
 * April 15: Bye Bye Bye! - ℃-ute
 * April 29: MY BOY - Buono!
 * May 13: Shouganai Yume Oibito - Morning Musume
 * May 20:
 * Hajimete no Keiken - Mano Erina
 * Mecha Mote I LOVE YOU - MM Gakuen Gasshoubu
 * May 27: Omakase♪Guardian - Guardians 4 (debut)
 * June 3: Seishun Bus Guide/Rival - Berryz Koubou
 * June 7: aMa no Jaku - S/mileage (indies debut)
 * June 17: Don't leave me - Satoda Mai with Gouda Kazoku
 * June 24:
 * DON'T SAY GOOD-BYE - Melon Kinenbi & Beat Crusaders
 * no hesitAtIon - Kago Ai
 * July 1: Shochuu Omimai Moushiagemasu - ℃-ute
 * July 15: Mecha Mote! Summer - MM Gakuen Gasshoubu
 * July 22: Pinchi wa Chance - Baka ni Narou ze! - Melon Kinenbi & New Rote'ka
 * July 29: Sekai wa Summer Party - Mano Erina
 * August 12:
 * Nanchatte Ren'ai - Morning Musume
 * sweet suicide summer story - Melon Kinenbi & Midori
 * August 26: Take It Easy! - Buono!
 * September 2: School Days - Guardians 4
 * September 9: Family ~Tabidachi no Asa~ - THE Possible
 * September 15: Bokutachi Zespri Kiwi Dane - Tsuji Nozomi
 * September 16: EVERYDAY Zekkouchou!! - ℃-ute
 * September 23: Asu wa Date na no ni, Ima Sugu Koe ga Kikitai - S/mileage
 * September 30: Kono Mune no Tokimeki wo - Mano Erina
 * October 10: Seishun-on-the-Road - Melon Kinenbi & The Collectors
 * October 21: Daisuki ni Nare! / Kokoro Kimi ni Todoke - Ogawa Mana with MM Gakuen Gasshoubu
 * October 28: Kimagure Princess - Morning Musume
 * November 11: Watashi no Mirai no Danna-sama/Ryuusei Boy - Berryz Koubou
 * November 18: PARTY TIME - Guardians 4
 * November 23: Suki-chan - S/mileage
 * November 25:
 * Love&Peace=Paradise - Mano Erina
 * Ame / Watarasebashi - Moritaka Chisato
 * December 16: Bravo☆Bravo - Buono!
 * December 30: Melon Tea - Melon Kinenbi & GOING UNDER GROUND

Albums

 * January 9: 1st Zui Bang! - Ice Creamusume
 * January 14: Berryz Koubou Special Best Vol.1 - Berryz Koubou
 * January 21: Omoi Afurete - Matsuura Aya
 * January 28: 4 Akogare My STAR - ℃-ute
 * February 11: Buono! 2 - Buono!
 * March 11: Best☆Kirari - Kusumi Koharu (last)
 * March 18:
 * Platinum 9 DISC - Morning Musume
 * Kirarin☆Revolution Song Selection 5 - Kusumi Koharu, MilkyWay, SHIPS
 * July 15: Chanpuru 1 ~Happy Marriage Song Cover Shuu~ - Hello! Project
 * September 15: Wo Shi Da Xiao Jie - Da Xiao Jie (debut)
 * September 16: SWEET BLACK - Goto Maki
 * October 7: Morning Musume Zen Single Coupling Collection - Morning Musume
 * November 11: Sadistic Dance - Hangry&Angry
 * November 18: ℃-ute Nandesu! Zen Single Atsumechaimashita! 1 - ℃-ute
 * December 2: Petit Best 10 - Hello! Project
 * December 16: FRIENDS - Mano Erina (debut)
 * December 17: Koi no Dekaris - Team DEKARIS
 * December 26: NO NIGHT EDEN - Noto Arisa (debut)