2011

2011 is the year Ogawa Saki, Takahashi Ai and Maeda Yuuka departed from their respective groups and Hello! Project; Fukumura Mizuki, Ikuta Erina, Sayashi Riho, Suzuki Kanon, Iikubo Haruna, Ishida Ayumi, Sato Masaki and Kudo Haruka join Morning Musume; and Nakanishi Kana, Kosuga Fuyuka, Takeuchi Akari, Katsuta Rina and Tamura Meimi join S/mileage.
==Members==
*January 2: Fukumura Mizuki, Ikuta Erina, Sayashi Riho, and Suzuki Kanon join Morning Musume as the 9th generation.
*January 7: Fukumura Mizuki finishes training within Hello Pro Egg.
*January 28: Dream Morning Musume is formed.
*January 17: Mori Saki graduates from Hello Pro Egg.
*January 31: Furukawa Konatsu graduates from Hello Pro Egg.
*March 27: Lilpri disbands.
*March 9: Kitahara Sayaka, Sato Ayano, Sekine Azusa, and Arai Manami graduate from Hello Pro Egg.
*April 5: Ganbarou Nippon Ai wa Katsu Singers is formed.
*April 17: SI☆NA disbands.
*April 18: Saho Akari graduates from Hello Pro Egg.
*June 19: Yoshihashi Kurumi, Hamaura Ayano, and Taguchi Natsumi join Hello Pro Egg.
*June 20: Otsuka Aina, Mogi Minami, and Ogawa Rena join Hello Pro Egg.
*June 22: Otsubo Mano was born.
*August 14: Nakanishi Kana, Kosuga Fuyuka, Takeuchi Akari, Katsuta Rina, and Tamura Meimi join S/mileage as sub-members.
*August 27: Ogawa Saki graduates from S/mileage and Hello! Project.
*September 9: Kosuga Fuyuka leaves S/mileage.
*September 11: Nagasawa Wakana leaves Hello Pro Egg.
*September 29: Iikubo Haruna, Ishida Ayumi, Sato Masaki, and Kudo Haruka join Morning Musume as the 10th Generation.
*September 30:
**Takahashi Ai graduates from Morning Musume and Hello! Project.
**Niigaki Risa becomes leader of Morning Musume and Hello! Project.
*October 7: Reborn Eleven is formed.
*October 16: S/mileage sub-members become full members.
*October 17: Reborn Eleven disbands.
*November 12: Yamaga Kanae and Oda Sakura join Hello Pro Egg.
*December 31: Maeda Yuuka graduates from S/mileage and Hello! Project.
===Birthdays===
*February 4: Soma Yume was born.
*June 10: Hayashi Niina was born.
*October 1: Yoshida Hikari was born.
*December 20: Sugihara Meisa was born.
==Singles==
*January 25: Romantic Ukare Mode - Okai Chisato
*January 26: Seishun no Serenade - Mano Erina
*February 2: Zassou no Uta - Buono!
*February 9: Short Cut - S/mileage
*February 23: Kiss me Aishiteru - ℃-ute
*March 2: Heroine ni Narou ka! - Berryz Koubou
*April 6: Maji Desu ka Ska! - Morning Musume
*April 27: Koi ni Booing Buu! - S/mileage
*May 25: Busan Hatsu - Maeda Yuki (last single)
*May 25: Momoiro Sparkling - ℃-ute
*June 4: Ai no Dangan - Berryz Koubou
*June 15: Only you - Morning Musume
*June 29: My Days for You - Mano Erina
*July 20: Natsu Dakara! - Buono!
*August 3: Uchouten LOVE - S/mileage
*August 10: Aa, Yo ga Akeru - Berryz Koubou
*September 7: Sekaiichi HAPPY na Onna no Ko - ℃-ute
*September 14: Kono Chikyuu no Heiwa wo Honki de Negatterun da yo!/Kare to Issho ni Omise ga Shitai! - Morning Musume
*September 17: Seishun Gekijou - BeriKyuu
*September 28: Tachiagirl - S/mileage
*October 8: Reborn ~Inochi no Audition~ - Reborn Eleven
*November 9: Amazuppai Haru ni Sakura Saku - BeriKyuu (debut)
*November 16: Busu ni Naranai Tetsugaku - Hello! Project Mobekimasu
*December 21:
**Makeruna Wasshoi! - Bekimasu
**Carina Notte - Kopink
*December 28: Please Miniskirt Postwoman! - S/mileage
==Digital Songs==
*January 24: Romantic Ukare Mode - Okai Chisato
*January 26:
**Koi wo Shichaimashita! - Takahashi Ai
**Onegai Miwaku no Target - Niigaki Risa
**Koi no Hana - Niigaki Risa
**Kousui - Niigaki Risa
**Furusato - Niigaki Risa
**Manatsu no Kousen - Niigaki Risa
**LOVE Namida Iro - Niigaki Risa
**Egao ni Namida ~THANK YOU! DEAR MY FRIENDS~ - Niigaki Risa
**Manatsu no Kousen - Tanaka Reina
*February 16:
**Egao ni Namida ~THANK YOU! DEAR MY FRIENDS~ - Tanaka Reina
**Koi no Hana - Tanaka Reina
**Furusato - Suzuki Airi
*March 2:
**LOVE Namida Iro - Takahashi Ai
**Onegai Miwaku no Target - Tanaka Reina
**Kousui - Tanaka Reina
**Furusato - Natsuyaki Miyabi
**Egao ni Namida ~THANK YOU! DEAR MY FRIENDS~ - Yajima Maimi
*March 30:
**Akai Nikkichou - Takahashi Ai
**dearest. - Takahashi Ai
**Furusato - Takahashi Ai
**Egao ni Namida ~THANK YOU! DEAR MY FRIENDS~ - Tsugunaga Momoko
**Koi wo Shichaimashita! - Tsugunaga Momoko
**Kousui - Tsugunaga Momoko
**Koi wo Shichaimashita! - Natsuyaki Miyabi
**LOVE Namida Iro - Natsuyaki Miyabi
**Akai Nikkichou - Sugaya Risako
**Egao ni Namida ~THANK YOU! DEAR MY FRIENDS~ - Sugaya Risako
**LOVE Namida Iro - Sugaya Risako
**Kousui - Yajima Maimi
**Akai Nikkichou - Suzuki Airi
**Furusato - Okai Chisato
==Albums==
*January 12:  - , Sugaya Risako
*January 26: Jiā Jiāyóu! Dà Xiǎo Jiě - Dà Xiǎo Jiě
*March 30: ⑦ Berryz Times - Berryz Koubou
*April 6: Chou WONDERFUL! ⑥ - ℃-ute
*April 20: Dorimusu ① - Dream Morning Musume (debut)
*August 10: partenza - Buono!
*October 12: 12, Smart - Morning Musume
*December 7: Petit Best 12 - Hello! Project
==DVDs==
;January
*January 7:
**Bijo Gaku Vol.3 & Vol.4
**Real Kakurenbo Final - Mitsui Aika
*January 12: SAKI - Shimizu Saki
*January 26: Mittsi - Mitsui Aika
;February
*February 1: Bijo Gaku Vol.5 & Vol.6
*February 5: Hidamari - Nakajima Saki
*February 9: Berryz Koubou 2010 Aki ~BeriKou Fest!~ (DVD) - Berryz Koubou
*February 12: Le Soleil - Sugaya Risako
*February 16:
**Alo-Hello! 2 Berryz Koubou Blu-ray Disc - Berryz Koubou
**S/mileage no Music V Collection ① - S/mileage
*February 23:
**Morning Musume Concert Tour 2010 Aki ~Rival Survival~ (DVD) - Morning Musume
**NATURAL&COOL - Natsuyaki Miyabi
;March
*March 2:
**Light Novel no Tanoshii Kakikata - Berryz Koubou
**Ayaka - Wada Ayaka
**Hello! Channel the DVD Vol.3
*March 6: Momo Play♡ - Tsugunaga Momoko
*March 9: Bijo Gaku Vol.7 & Vol.8
*March 13: attracted - Tanaka Reina
*March 20: homey - Michishige Sayumi
*March 27: Kaifuu - Yajima Maimi
;April
*April 3:
**Morning Musume DVD Magazine Vol.36
**Morning Musume DVD Magazine Vol.37
*April 13:
**Morning Musume Concert Tour 2010 Aki ~Rival Survival~ (Blu-ray) - Morning Musume
**Eizou The Morning Musume 6 ~Single M Clips~ - Morning Musume
*April 20: AI loves you I love AI (DVD) - Takahashi Ai
*April 24: Morning Musume DVD Magazine Vol.38
*April 27:
**Hello! Project 2011 Winter ~Kangei Shinsen Matsuri~ A gana Live (DVD) - Hello! Project
**Hello! Project 2011 Winter ~Kangei Shinsen Matsuri~ B kkuri Live (DVD) - Hello! Project
;May
*May 10: Bijo Gaku Vol.9 & Vol.10
*May 11: Berryz Koubou 2010 Aki ~BeriKou Fest!~ (Blu-ray) - Berryz Koubou
*May 17:
**Solo Live 2011 Vol.1 ~Kaisha de Odottemita!!~ Live in Heaven - Okai Chisato
**Greeting ~Fukumura Mizuki~ - Fukumura Mizuki
*May 18:
**AI loves you I love AI (Blu-ray) - Takahashi Ai
**Hello! Project 2011 Winter ~Kangei Shinsen Matsuri~ Kanzenban (Blu-ray) - Hello! Project
;June
*June 9: Bijo Gaku Vol.11
*June 14: Mizuiro - Hagiwara Mai
*June 16: Hello! Channel the DVD Vol.4
*June 18: Solo Live 2011 Vol.2 ~Hanzomon de Odottemita!!~ - Okai Chisato
*June 20: Bijo Gaku Vol.12 
*June 22:
**From Days - Mano Erina
**Buono! Live 2011 winter ~Re;Buono!~ (DVD + Blu-ray) - Buono!
*June 29: S/mileage 1st Live Tour 2010 Aki ~Devil Smile Angel Smile~ (Blu-ray) - S/mileage
;July
*July 13:
**℃-ute & S/mileage Premium Live 2011 Haru ~℃ & S Collaboration Daisakusen~ (DVD) - ℃-ute, S/mileage
**Kibun Tenkan (DVD) - Suzuki Airi
*July 27: Morning Musume Concert Tour 2011 Haru Shin Souseiki Fantasy DX ~9ki Mem wo Mukaete~ (DVD) - Morning Musume
*July 20: Berryz Koubou Kessei 7 Shuunen Kinen Concert Tour 2011 Haru ~Shuukan Berryz Times~ (DVD) - Berryz Koubou
*July 30: Greeting ~Suzuki Kanon~ - Suzuki Kanon
;August
*August 3:
**℃-ute & S/mileage Premium Live 2011 Haru ~℃ & S Collaboration Daisakusen~ (Blu-ray) - ℃-ute, S/mileage
**Natsu Karada (DVD) - Suzuki Airi
*August 9: Bijo Gaku Vol.13
*August 10: Berryz Koubou Kessei 7 Shuunen Kinen Concert Tour 2011 Haru ~Shuukan Berryz Times~ (Blu-ray) - Berryz Koubou
*August 13: Greeting ~Ikuta Erina~ - Ikuta Erina
*August 17:
**Morning Musume Concert Tour 2011 Haru Shin Souseiki Fantasy DX ~9ki Mem wo Mukaete~ (Blu-ray) - Morning Musume
**Berryz Koubou Single V Clips ⑤ - Berryz Koubou
*August 24: S/mileage 2011 Limited Live "S/mile Factory" - S/mileage
*August 30: a foggy doll - Yajima Maimi
*August 31:
**Kibun Tenkan (Blu-ray) - Suzuki Airi
**Sayashi Riho ~Greeting~ - Sayashi Riho
;September
*September 3: Morning Musume DVD Magazine Vol.39
*September 7:
**Taishou Roman Haikara Tantei Aoi Ruby Satsujinjiken - Tanaka Reina, Shimizu Saki, Sudo Maasa
**Natsu Karada (Blu-ray) - Suzuki Airi
*September 14: Hello! Channel the DVD Vol.5
*September 21:
**Mano Erina Concert Tour 2011 ~Hatachi no Otome 801 DAYS~ - Mano Erina
**S/mile Factory ~S/mileage 4nin de Saigo da YO! Medetai no ni!~ - S/mileage
**Love Love Love (DVD) - Takahashi Ai
*September 25: Morning Musume Takahashi Ai Sotsugyou Memorial
*September 28:
**Alo-Hello! 5 Morning Musume DVD - Morning Musume
**℃-ute Concert Tour 2011 Spring ~Chou! Chou WONDERFUL Tour~ (DVD + Blu-ray) - ℃-ute
*September 29: Morning Musume DVD Magazine Vol.40
*September 30: a rainy day - Yajima Maimi
;October
*October 19: Love Love Love (Blu-ray) - Takahashi Ai
;November
*November 2: Alo-Hello! 5 Morning Musume Blu-ray Disc - Morning Musume
*November 9: Mano Erina 10th Single Release Event Mano Sonata ~Red Sensation~ - Mano Erina
*November 12: Imagine classic - Yajima Maimi
*November 17: Hello! Channel the DVD Vol.6
*November 30: ℃-ute Cutie Circuit 2011 ~9gatsu 10ka wa ℃-ute no Hi~ - ℃-ute
;December
*December 7: Buono! Live Tour 2011summer ~Rock'n Buono!~ 4 (DVD + Blu-ray) - Buono!
*December 9: IMP.GIRL - Okai Chisato
*December 21:
**Morning Musume Zen Single MUSIC VIDEO Blu-ray File 2011 - Morning Musume
**Berryz Koubou Zen Single MUSIC VIDEO Blu-ray File 2011 - Berryz Koubou
**℃-ute Zen Single MUSIC VIDEO Blu-ray File 2011 - ℃-ute
**Mano Erina Zen Single MUSIC VIDEO Blu-ray File 2011 - Mano Erina
**S/mileage Zen Single MUSIC VIDEO Blu-ray File 2011 - S/mileage
**S/mileage Concert Tour 2011 Aki ~Gyakushuu no Mini Skirt~ - S/mileage
*December 23:
**Momo Play 2 ~Yoru mo Uzai ne~ - Tsugunaga Momoko
**one day in autumn - Kumai Yurina
*December 28: Morning Musume Concert Tour 2011 Aki Ai Believe ~Takahashi Ai Graduation Memory Special~ (DVD + Blu-ray) - Morning Musume
==Concerts==
*January 3 - January 23: Hello! Project 2011 Winter ~Kangei Shinsen Matsuri~ A gana Live
*January 5 - January 23: Hello! Project 2011 Winter ~Kangei Shinsen Matsuri~ B kkuri Live
*February 11 - February 20: Buono! Live 2011 winter ~Re;Buono!~
*March 3 - June 5: Berryz Koubou Kessei 7 Shuunen Kinen Concert Tour 2011 Haru ~Shuukan Berryz Times~
*March 5 - March 6: ℃-ute Cutie Circuit 2011 ~Kiss me Aishiteru~
*April 3 - June 26: Morning Musume Concert Tour 2011 Haru Shin Souseiki Fantasy DX ~9ki Mem wo Mukaete~
*April 16 - June 25: ℃-ute & S/mileage Premium Live 2011 Haru ~℃ & S Collaboration Daisakusen~
*April 23 - May 29: Dream Morning Musume Concert Tour 2011 Haru no Mai ~Sotsugyousei DE Saikessei~
*April 30 - July 2: ℃-ute Concert Tour 2011 Haru ~Chou! Chou Wonderful Tour~
*May 28 - June 11: Mano Erina Concert Tour 2011 ~Hatachi no Otome 801 DAYS~
*June 12: S/mileage 2011 Limited Live "S/mile Factory"
*July 16 - August 14:
**Hello! Project 2011 SUMMER ~Nippon no Mirai wa WOW WOW Live~
**Hello! Project 2011 SUMMER ~Nippon no Mirai wa YEAH YEAH Live~
*August 20 - August 28: Buono! Live Tour 2011 summer ~Rock'n Buono!~ 4
*September 3 - September 30: Morning Musume Concert Tour 2011 Aki Ai BELIEVE ~Takahashi Ai Graduation Memory Special~
*September 10: ℃-ute Cutie Circuit 2011 ~9gatsu 10ka wa ℃-ute no Hi~
*September 10 - October 8: S/mileage Concert Tour 2011 Aki ~Gyakushuu no Mini Skirt~
*September 11: Hello Pro Egg 2011 Happyoukai ~9gatsu no Nama Tamago Show!~
*October 22 - December 25: Berryz Koubou & ℃-ute Collaboration Concert Tour 2011 Autumn ~BeriKyuu Island~
*November 23: Hello! Project ☆ Festival 2011
==Publications==
*January 1: Hello! Project DIGITAL BOOKS Vol.75 Michishige Sayumi - Michishige Sayumi
*January 12: Shimizu Saki - Shimizu Saki
*January 26: Aika - Mitsui Aika
*February 25: Wada Ayaka 16 - Wada Ayaka
*March 3: Berryz Koubou 7 Shuunen Kinen PHOTO BOOK - Berryz Koubou
*March 28: LOVE NO.10 - Takahashi Ai
*April 21: Hello! Channel Vol.4
*May 23: Meguru Haru - Suzuki Airi
*June 23: OASIS - Suzuki Airi
*July 12: Hello! Channel Vol.5
*July 15: W SAKI - Nakajima Saki
*August 9: Shin Souseiki Fantasy DX - 9ki Mem wo Mukaete  - Morning Musume
*August 27: Sayashi Riho - Sayashi Riho
*September 23: Hello! Channel Vol.6
*September 30: Ai Ai Ai - Takahashi Ai
*December 19: Hello! Channel Vol.7
==Anniversaries==
*January 14: Berryz Koubou's formation 7th anniversary
*January 28: Morning Musume's major debut 13th anniversary
*February 21: ℃-ute's major debut 4th anniversary
*March 3: Berryz Koubou's major debut 7th anniversary
*April 4: S/mileage's formation 2nd anniversary
*May 26: S/mileage's major debut 1st anniversary
*June 11: ℃-ute's formation 6th anniversary
*September 10: ℃-ute Day (℃-ute no Hi)
*September 14: Morning Musume's formation 14th anniversary
Category:2011