2012 Happenings

6 retirements
42 new singles
11 new albums
17 joined groups
14 new idols
39 left groups
6 graduations
2 new leaders
7 new groups
4 disbanded groups
2 ex-leaders

January 2012

1 Jang DaYeon retires from show business
1 Gotou Maki discontinues soloist work
1 Jang DaYeon leaves HelloPro Kenshuusei
1 Jang DaYeon leaves Hello! Project
1 Gotou Maki retires from show business
2 Kudou Haruka leaves HelloPro Kenshuusei
15 The Possible releases “Kibou to Seishun no Hikari〜Come On! Pika! Pika!〜”
18 Buono! releases “Hatsukoi Cider / DEEP MIND”
18 Kikkawa You releases “One for YOU!”
22 Nakajima Saki leaves Hello! Project Mobekimasu
22 Mano Erina leaves Hello! Project Mobekimasu
22 Tanaka Reina leaves Hello! Project Mobekimasu
22 Shimizu Saki leaves Hello! Project Mobekimasu
22 Michishige Sayumi leaves Hello! Project Mobekimasu
22 Yajima Maimi leaves Hello! Project Mobekimasu
22 Niigaki Risa steps down as leader of Hello! Project Mobekimasu
22 Niigaki Risa leaves Hello! Project Mobekimasu
22 Tsugunaga Momoko leaves Hello! Project Mobekimasu
22 Tokunaga Chinami leaves Hello! Project Mobekimasu
22 Suzuki Kanon leaves Hello! Project Mobekimasu
22 Sudou Maasa leaves Hello! Project Mobekimasu
22 Kudou Haruka leaves Hello! Project Mobekimasu
22 Takeuchi Akari leaves Hello! Project Mobekimasu
22 Natsuyaki Miyabi leaves Hello! Project Mobekimasu
22 Ikuta Erina leaves Hello! Project Mobekimasu
22 Hello! Project Mobekimasu disbands
22 Nakanishi Kana leaves Hello! Project Mobekimasu
22 Mitsui Aika leaves Hello! Project Mobekimasu
22 Tamura Meimi leaves Hello! Project Mobekimasu
22 Katsuta Rina leaves Hello! Project Mobekimasu
22 Fukumura Mizuki leaves Hello! Project Mobekimasu
22 Iikubo Haruna leaves Hello! Project Mobekimasu
22 Hagiwara Mai leaves Hello! Project Mobekimasu
22 Kumai Yurina leaves Hello! Project Mobekimasu
22 Fukuda Kanon leaves Hello! Project Mobekimasu
22 Ishida Ayumi leaves Hello! Project Mobekimasu
22 Wada Ayaka leaves Hello! Project Mobekimasu
22 Sayashi Riho leaves Hello! Project Mobekimasu
22 Satou Masaki leaves Hello! Project Mobekimasu
22 Okai Chisato leaves Hello! Project Mobekimasu
22 Suzuki Airi leaves Hello! Project Mobekimasu
22 Sugaya Risako leaves Hello! Project Mobekimasu
25 Morning Musume｡ releases “Pyocopyoco Ultra”

February 2012

1 S/mileage releases “Choto Mate Kudasai!”
8 ℃-ute releases “Dai Nana Shou「Utsushikutte Gomen ne」”
15 Dream Morning Musume｡ releases “Shining Butterfly”
22 Berryz Koubou releases “Ai no Album⑧”
22 Mano Erina releases “Dokidoki Baby / Tasogare Kousaten”
25 The Possible releases “Sakurairo Romantic”
28 Kitahara Sayaka releases “HAJIKE-YO!!”

March 2012

7 ABCHO is formed
10 Dream Morning Musume｡ disbands
13 Kosuga Fuyuka joins HelloPro Kenshuusei
16 Uemura Akari joins Hello! Project
16 Uemura Akari joins HelloPro Kenshuusei
21 Berryz Koubou releases “Be Genki <Naseba Naru!>”
28 The Possible releases “②Shiawase no Akashi”
28 Shibata Ayumi releases “Setsuna”
28 Mano Erina releases “More Friends Over”

April 2012

1 Murota Mizuki joins Hello! Project
1 Murota Mizuki joins HelloPro Kenshuusei
11 Morning Musume｡ releases “Renai Hunter”
18 ℃-ute releases “Kimi wa Jitensha Watashi wa Densha de Kitaku”
25 Up Up Girls (Kari) releases “Going my ↑”

May 2012

1 Aiko leaves Hello! Project
1 Frances leaves Hello! Project
2 S/mileage releases “Dot Bikini”
18 Niigaki Risa leaves Hello! Project
18 Niigaki Risa leaves Morning Musume｡
18 Mitsui Aika leaves Morning Musume｡
18 Niigaki Risa steps down as leader of Morning Musume｡
19 Michishige Sayumi becomes leader of Morning Musume｡
23 ABCHO releases “Me wo Tojite Gyusshiyo”
30 S/mileage releases “S/mileage Best Album Kanzenban ①”

June 2012

4 Okamura Rise joins Hello! Project
4 Okamura Rise joins HelloPro Kenshuusei
13 Kitahara Sayaka releases “Natsu ga Yattekuru”
17 Yamagishi Riko joins HelloPro Kenshuusei
17 Nomura Minami joins HelloPro Kenshuusei
17 Yamagishi Riko joins Hello! Project
17 Nomura Minami joins Hello! Project
20 Berikyuu releases “Chou HAPPY SONG”
22 Maeda Yuki retires from show business
27 Up Up Girls (Kari) releases “BareBare I LOVE YOU”
27 Mano Erina releases “Song for the DATE”

July 2012

4 Morning Musume｡ releases “One・Two・Three / The Matenrou Show”
11 Kikkawa You releases “Koko Kara Hajimarunda!”
20 Peaberry is formed
20 DIY♡ is formed
25 Up Up Girls (Kari) releases “Uppercut! / Yuudachi! Through the Rainbow”
25 CAT'S♥EYE 7 is formed
25 Berryz Koubou releases “cha cha SING”

August 2012

4 Up Up Girls (Kari) releases “Mecha Kyun♡Summer( ´ ▽ ` )ノ”
22 Buono! releases “SHERBET”
22 S/mileage releases “Suki yo､ Junjou Hankouki｡”
27 Yamaga Kanae retires from show business
27 Yamaga Kanae leaves HelloPro Kenshuusei
27 Yamaga Kanae leaves Hello! Project
29 The Possible releases “Nanja Korya?!”

September 2012

5 ℃-ute releases “Aitai Aitai Aitai na”
12 Morning Musume｡ releases “⑬ Colorful Character”
14 ABCHO disbands
15 Oda Sakura joins Morning Musume｡
15 Oda Sakura leaves HelloPro Kenshuusei
26 Kikkawa You releases “Darling to Madonna”
26 Up Up Girls (Kari) releases “Namen na! Ashi Girls / Marble Hero”

October 2012

3 Up Up Girls (Kari) releases “End Of The Season”
9 Harvest is formed
9 GREEN FIELDS is formed
10 Morning Musume｡ releases “Wakuteka Take a chance”
14 CAT'S♥EYE 7 disbands
27 HelloPro Kenshuusei releases “Kanojo ni Naritai!!!”
28 Up Up Girls (Kari) releases “Kakko Tsukete Ii Desho!”

November 2012

7 Peaberry and Harvest release “Cabbage Hakusho / Forest Time”
7 Kikkawa You releases “Vocalist?”
7 Peaberry and Harvest release “Forest Time / Cabbage Hakusho”
7 DIY♡ and GREEN FIELDS release “ForeFore〜Forest For Rest〜 / Boys be ambitious!”
7 CAT'S♥EYE 7 releases “Cat's♥Eye”
7 Up Up Girls (Kari) releases “UPPER ROCK / Ichiban Girls!”
18 Okada Marina joins Hello! Project
18 Tanaka Reina becomes leader of LoVendoЯ
18 LoVendoЯ is formed
18 Miyazawa Marin joins Hello! Project
18 Uozumi Yuki joins Hello! Project
20 Mogi Minami retires from show business
20 Ichioka Reina joins HelloPro Kenshuusei
20 Kishimoto Yumeno joins HelloPro Kenshuusei
20 Makino Maria joins Hello! Project
20 Kanazawa Tomoko joins Hello! Project
20 Kanazawa Tomoko joins HelloPro Kenshuusei
20 Makino Maria joins HelloPro Kenshuusei
20 Ichioka Reina joins Hello! Project
20 Wada Sakurako joins HelloPro Kenshuusei
20 Kaga Kaede joins HelloPro Kenshuusei
20 Kishimoto Yumeno joins Hello! Project
20 Mogi Minami leaves HelloPro Kenshuusei
20 Mogi Minami leaves Hello! Project
20 Wada Sakurako joins Hello! Project
20 Kaga Kaede joins Hello! Project
21 ℃-ute releases “②℃-ute Shinsei Naru Best Album”
28 S/mileage releases “Samui ne｡”

December 2012

5 Up Up Girls (Kari) releases “Chopper☆Chopper / Survival Girls”
5 Mano Erina , Morning Musume｡ , Buono! , S/mileage , Berikyuu and CAT'S♥EYE 7 release “Pucchi Best 13”
12 Mano Erina releases “NEXT MY SELF”
19 Berryz Koubou releases “WANT!”
28 Heike Michiyo retires from show business