2010

2010 was the year when Kamei Eri, Junjun, and Linlin graduated from Morning Musume and Hello! Project.
==Members==
*January 2: Wonderful Hearts disbands to form Hello! Project Mobekimasu
*March 27:
**Kizawa Runa, Nagasawa Wakana, and Kudo Haruka join Hello Pro Egg
**Shugo Chara Egg! and Guardians 4 disband
*April 1: Oha Girl Maple is formed
*May 1: Lilpri is formed
*May 16: Ex-ceed! is formed
*June 5: Tanaka Anri leaves Hello Pro Egg
*June 12: Komine Momoka finishes her training within Hello Pro Egg
*June 29: Sainen Mia finishes her training within Hello Pro Egg
*August 29: Muten Musume is formed
*October 28: Ex-ceed! disbands
*November 1: Ice Creamusume disbands
*November 28: Okai Asuna, Maeda Irori, Hirano Tomomi, and Kizawa Runa leave Hello Pro Egg
*December 15:
**Kamei Eri, Junjun, and Linlin graduate from Morning Musume and Hello! Project
**Muten Musume disbands
*December 21: Sengoku Minami finishes her training within Hello Pro Egg
*December 24: Kikkawa You finishes her training within Hello Pro Egg, and becomes a soloist
== Birthdays ==
*March 12: Murata Yuu was born. 
*March 23: Doi Fuka was born. 
*August 27: Miyakoshi Chihiro was born.
*October 15: Nishimura Itsuki was born.
==Singles==
*January 6: SHOCK! - ℃-ute
*January 20: Going On! - Guardians 4 (last)
*February 3: Our Songs - Buono!
*February 10: Onna ga Medatte Naze Ikenai - Morning Musume
*February 24: Haru no Arashi - Mano Erina
*March 3: Otakebi Boy WAO! / Tomodachi wa Tomodachi Nanda! - Berryz Koubou
*March 14: Otona ni Narutte Muzukashii!!! - S/mileage
*April 28: Campus Life ~Umarete Kite Yokatta~ - ℃-ute
*May 12: Onegai Dakara... - Mano Erina
*May 26: Yumemiru Fifteen - S/mileage (major debut)
*June 9: Seishun Collection - Morning Musume
*June 16: Little♡Princess☆Pri! - Lilpri (debut)
*July 14: Maji Bomber!! - Berryz Koubou
*July 28: ○○ Ganbaranakutemo Eenende!! - S/mileage
*August 25: Dance de Bakoon! - ℃-ute
*September 15: Genkimono de Ikou! - Mano Erina
*September 29: Onaji Jikyuu de Hataraku Tomodachi no Bijin Mama - S/mileage
*October 13:
**Akuma de Cute na Seishun Graffiti - ℃-ute
**Oshare My Dream / Elegant Girl - Kitagami Mimi (CV ) / Himuro Ibu (CV Sugaya Risako)
*October 27: Appare Kaitenzushi! - Muten Musume
*November 10: Shining Power - Berryz Koubou
*November 17:
**Onna to Otoko no Lullaby Game - Morning Musume
**Idolulu - Lilpri (last)
*November 24: My School March - Oha Girl Maple with S/mileage
*December 1:
**Aitai Lonely Christmas - ℃-ute
**Ramen Revolution 2010 Long Type - Morning Musume
==Digital Songs==
*November 27: LOVE Namida Iro - Okai Chisato
*December 10:
**Seinaru Kane ga Hibiku Yoru - Niigaki Risa
**Seinaru Kane ga Hibiku Yoru - Tanaka Reina
**Seinaru Kane ga Hibiku Yoru - Tsugunaga Momoko
**Seinaru Kane ga Hibiku Yoru - Yajima Maimi
**Seinaru Kane ga Hibiku Yoru - Suzuki Airi
**Egao ni Namida ~THANK YOU! DEAR MY FRIENDS~ - Okai Chisato
**Manatsu no Kousen - Okai Chisato
==Albums==
*February 3: Wǒ Shì Dà Xiǎo Jiě Zhī Hǔ Hǔshēng Fēng Hènián Bǎn - Dà Xiǎo Jiě
*February 10: We are Buono! - Buono!
*February 24: Shocking 5 - ℃-ute
*March 10: Shugo Chara! Song♪Best - Buono!. Guardians 4, Shugo Chara Egg!
*March 17: 10 MY ME - Morning Musume
*March 31: 6th Otakebi Album - Berryz Koubou
*July 25: END OF THE GATE - Noto Arisa
*August 10: The Best Buono! - Buono!
*August 14: Innocent as a BABY
*November 24: MORE FRIENDS - Mano Erina
*December 1: Fantasy! Juuichi - Morning Musume
*December 8:
**Warugaki ① - S/mileage (debut)
**Hello Cover (digital) - Kamei Eri
*December 12: A piece of Romance - Noto Arisa
*December 15: Petit Best 11 - Hello! Project
==DVDs==
;January
*January 20: Morning Musume Yomiuri Land EAST LIVE 2009 - Morning Musume
*January 27:
**℃-ute Concert Tour 2009 Natsu Aki ~Cutie JUMP!~ - ℃-ute
**Manoguide in Yakushima - Mano Erina
;February
*February 10: Berryz Koubou Concert Tour 2009 Aki ~Medachitaii!!~ - Berryz Koubou
*February 17:
**℃-ute Cutie Circuit 2009 ~FIVE~ - ℃-ute
**Koisuru Hello Kitty - Mano Erina
*February 24: Morning Musume Concert Tour 2009 Aki ~Nine Smile~ - Morning Musume
;March
*March 3:
**Mano Erina Single V Clips 1 - Mano Erina
**too sweet Eri - Kamei Eri
*March 10: CLIPS vol.1 - Buono!
*March 17: Shugo Chara! Clip♪Best - Buono!, Guardians 4, Shugo Chara Egg!
*March 19: Morning Musume DVD Magazine Vol.29
*March 31: Hello! Project 2010 WINTER Kachou Fuugetsu ~Shuffle Date~ (DVD) - Hello! Project
;April
*April 17:
**Morning Musume DVD Magazine Vol.30
**Morning Musume DVD Magazine Vol.31
*April 28:
**Hello! Project 2010 Winter Kachou Fuugetsu ~Mobekimasu!~ (DVD) - Hello! Project
**Sayu - Michishige Sayumi
;May
*May 19: Buono! Live 2010 ~We are Buono!~
;June
*June 2: Figure - Takahashi Ai
*June 11: Morning Musume DVD Magazine Vol.32
*June 16:
**Special Joint 2010 Haru ~Kansha Mankai! Mano Erina 2 Shuunen Totsunyuu & S/mileage Major Debut e Sakura Sake! Live~ - Mano Erina, S/mileage
**Alo-Hello! 4 Morning Musume DVD - Morning Musume
*June 17: Hello! Channel the DVD
*June 23:
**Berryz Koubou Festival ~Youkoso Otakebi Land e~ - Berryz Koubou
**Fix no E - Yajima Maimi
;July
*July 7: ℃-ute Concert Tour 2010 Haru ~Shocking LIVE~ - ℃-ute
*July 14:
**Morning Musume Concert Tour 2010 Haru ~Pikappika!~ - Morning Musume
**Alo-Hello! 3 Niigaki Risa DVD - Niigaki Risa
;August
*August 4:
**Maeda Yuuka Junpaku - Maeda Yuuka
**Hello! Project 2010 WINTER Kachou Fuugetsu ~Shuffle Date~ (Blu-ray) - Hello! Project
**Hello! Project 2010 Winter Kachou Fuugetsu ~Mobekimasu!~ (Blu-ray) - Hello! Project
*August 25:
**Berryz Koubou Concert Tour 2010 Shoka ~Umi no ie Otakebi House~ - Berryz Koubou
**Natsuyasumi - Suzuki Airi
;September
*September 15: Fashionable - Morning Musume
*September 18:
**Morning Musume DVD Magazine Vol.33
**Morning Musume DVD Magazine Vol.34
;October
*October 10: Morning Musume DVD Magazine Vol.35
*October 27: Hello! Project 2010 Summer ~Fankora!~ - Hello! Project
;November
*November 10: Buono! Live Tour 2010 ~Rock'n Buono!~ 3 - Buono!
*November 13:
**Morning Musume Kamei Eri Sotsugyou Memorial
**Morning Musume Junjun & Linlin Sotsugyou Memorial
*November 17: Alo-Hello! 2 Berryz Koubou DVD - Berryz Koubou
;December
*December 1: Bijo Gaku Vol.1 & Vol.2
*December 17: Hello! Channel the DVD Vol.2
*December 24: Chissaa - Okai Chisato
==Anniversaries==
*January 14: Berryz Koubou's formation 6th anniversary
*January 28: Morning Musume's major debut 12th anniversary
*February 21: ℃-ute's major debut 3rd anniversary
*March 3: Berryz Koubou's major debut 6th anniversary
*April 4: S/mileage's formation 1st anniversary
*June 11: ℃-ute's Formation 5th anniversary
*September 10: ℃-ute Day (℃-ute no Hi)
*September 14: Morning Musume's formation 13th anniversary
Category:2010