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(Top) 1 Members 1.1 Former members 2 Discography 2.1 Studio albums 2.2 Singles 3 Music videos 4 Notes 5 References 6 External links

X21 (group)

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X21
Origin	Japan
Genres	J-pop
Years active	2013–2018
Labels	Avex Trax (since 19 March 2014), Oscar Promotion (2nd X21)

Website	x21.oscarpro.co.jp

X21 (次世代ユニットX21, Jisedai Yunitto Ekkusu Nijūichi) was a Japanese girl idol group.^[1] It was formed in 2013 of 21 finalists (with the average age of 14 years) of the 13th Japan Bishōjo Contest and is affiliated to the entertainment company Oscar Promotion.^[2]

Members[edit]

Former members[edit]

Mai Suenaga (末永真唯)
Koharu Yamaki (山木コハル)
Mami Nagao (長尾真実)
Shuri Tanaka (田中珠里)
Hasumi Shiritori (白鳥羽純)
Rina Matsuda (松田莉奈)
Honoka Kaminaguchi (上水口萌乃香)
Nanaka Ozawa (小澤奈々花)
Sakura Komoriya (籠谷さくら)
Sāya Yamasaki (山﨑紗彩)
Ichika Osaki (尾碕真花)
Manami Igashira (井頭愛海)
Yūka Takamura (髙村優香)
Hikaru Katogaki (門垣ひかる)
Mika Iijima (飯島未賀)
Yurina Kawaguchi (川口ゆりな)
Megumi Nakazato (中里萌)
Shiori Inuzuka (犬塚しおり)
Moe Fujie (藤江萌)^[3]
Misaki Nishikawa (西川美咲)
Ayano Wakayama (若山あやの)
Miyu Sagawa (佐川実優)
Runa Takahashi (高橋るな)
Yurika Hosoi (細井友里加)
Misaki Sera (瀬羅美咲)
Aguri Ōnishi (大西亜玖璃)
Miho Izumikawa (泉川実穂)
Miyu Yoshimoto (吉本実憂)

Discography[edit]

Studio albums[edit]

No.	Title	Album details	Peaks
No.	Title	Album details	JPN ^[4]	JPN Hot. ^[A]^[5]
1	Shōjo X (少女X)	Released: April 29, 2015 (2015-04-29) Label: Avex Trax Format(s): CD, CD+DVD, digital download	21	—
2	Beautiful X	Released: March 15, 2017 (2017-03-15) Label: Avex Trax Format(s): CD+VR, CD+Blu-ray, digital download	20	40
"—" denotes items which failed to chart.

Singles[edit]

No.	Title	Release date	Peaks		Album
No.	Title	Release date	JPN ^[6]	JPN Hot. ^[B]	Album
1	"Asu e no Sotsugyō" (明日への卒業)	March 19, 2014 (2014-03-19)	15	100	Shōjo X
2	"Koisuru Natsu!" (恋する夏!)	June 25, 2014 (2014-06-25)	9	—
3	"Happy Appli" (ハッピーアプリ)	September 24, 2014 (2014-09-24)	11	—
4	"X Gift" (Xギフト)	December 3, 2014 (2014-12-03)	21	—
5	"You-ki no Parade" (YOU-kIのパレード)	September 23, 2015 (2015-09-23)	5	—	Beautiful X
6	"Magical☆Kiss" (マジカル☆キス)	December 2, 2015 (2015-12-02)	10	—
7	"Yakusoku no Oka" (約束の丘)	March 30, 2016 (2016-03-30)	10	54
8	"Natsu dayo!!" (夏だよ!!)	July 27, 2016 (2016-07-27)	15	30
9	"Kagami no Naka no Parallel Girl" (鏡の中のパラレルガール)	December 21, 2016 (2016-12-21)	12	42
10	"Genjitsu kara Nigeru kara Genjitsu ga Tsurainda" (現実から逃げるから現実がツラいんだ)	August 16, 2017 (2017-08-16)	6	30	Non-album single
11	Friday Night Party	March 14, 2018 (2018-03-14)	9	29
12	Destiny	September 19, 2018 (2018-09-19)	8	—
"—" denotes items which failed to chart.

Music videos[edit]

Year	Title
2014	"Asu e no Sotsugyō"] (YouTube Special MV)
	"Gwiyomi Song" (キヨミ・ソング)
	"Koisuru Natsu!"
	"Happy Appli"
	"Xギフト"
2015	"Shōjo X"
	"YOU-kI no Parade"
	"Magical☆Kiss"
2016	"Yakusoku no Oka"
	"Natsu dayo!!"
	"Kagami no Naka no Parallel Girl"
2017	"Beautiful X"
2017	"Genjitsu kara Nigeru kara Genjitsu ga Tsurainda

Notes[edit]

^ The Billboard Japan Hot Albums chart was established in June 2015.

^ Sources for chart positions are as follows: "Asu e no Sotsugyō",^[7] "Yakusoku no Oka",^[8] "Natsu dayo!!",^[9] "Kagami no Naka no Parallel Girl",^[10] "Genjitsu kara Nigeru kara Genjitsu ga Tsurainda",^[11] "Friday Night Party^[12]

References[edit]

^ "『エクスペ3』監督＆キャストにアイドルグループX21がインタビュー" (in Japanese). Pia. 2015-03-05. Retrieved 2015-04-25.
"アイドルグループ・Ｘ21超強気「日本が21点差で勝つ！」" (in Japanese). Tokyo Sports. 2014-06-24. Retrieved 2015-04-25.
"オスカー「国民的美少女」のアイドルグループX21が「キヨミ・ソング」を日本語でカバー" (in Japanese). Kstyle. 2014-05-23. Retrieved 2015-04-25.
"オスカー「国民的美少女」のアイドルグループX21が「キヨミ・ソング」を日本語でカバー" (in Japanese). Kstyle. 2014-05-23. Retrieved 2015-04-25.

^ "平均年齢14歳の大型ガールズユニット「X21」お披露目。300人以上在籍でAKB48超える大所帯に? 1枚目". ORICON STYLE. oricon ME. 2013-01-28. Retrieved 2015-04-01.
"オスカー美少女ユニット「X21」がお披露目平均年齢14歳" (in Japanese). Oricon. 2013-01-28. Retrieved 2015-04-25.

^ X21、大規模な体制変更＆新メンバーを発表。メンバー個人SNSも一斉解禁. Barks (in Japanese). Japan Music Network. 2017-10-13. Retrieved 2018-03-24.

^ "X21のアルバム売上ランキング" (in Japanese). Oricon Inc. Retrieved 2015-04-25.

^ ""Beautiful X"". Billboard (in Japanese). 2017-03-27. Retrieved 2018-03-24.

^ "X21のシングル売上ランキング" (in Japanese). Oricon Inc. Retrieved 2015-04-25.

^ "Japan Billboard Hot 100". Billboard (in Japanese). 2014-03-31. Retrieved 2018-03-24.

^ "Japan Billboard Hot 100". Billboard (in Japanese). 2016-04-11. Retrieved 2018-03-24.

^ "Japan Billboard Hot 100". Billboard (in Japanese). 2016-08-08. Retrieved 2018-03-24.

^ "Japan Billboard Hot 100". Billboard (in Japanese). 2017-01-02. Retrieved 2018-03-24.

^ "Japan Billboard Hot 100". Billboard (in Japanese). 2017-08-28. Retrieved 2018-03-24.

^ "Japan Billboard Hot 100". Billboard (in Japanese). 2018-03-26. Archived from the original on 2018-03-23. Retrieved 2018-03-24.

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