SDN48

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Japanese idol girl group

title: "SDN48" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["akb48-group", "japanese-girl-groups", "japanese-idol-groups", "musical-groups-established-in-2009", "universal-music-japan-artists", "japanese-pop-music-groups", "2009-establishments-in-japan", "musical-groups-from-akihabara", "musical-groups-disestablished-in-2012", "2012-disestablishments-in-japan"] description: "Japanese idol girl group" topic_path: "arts" source: "https://en.wikipedia.org/wiki/SDN48" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Japanese idol girl group ::

::data[format=table title="Infobox musical artist"]

Field	Value
name	SDN48
alias	Saturday Night 48
origin	Akihabara, Tokyo, Japan
genre	Pop
years_active	–2012
label	Nayutawave
associated_acts	AKB48 Group, Monta Mino
past_members	List of members
::

| name = SDN48 | image = | alt = | caption = | image_size = | alias = Saturday Night 48 | origin = Akihabara, Tokyo, Japan | genre = Pop | years_active = –2012 | label = Nayutawave | associated_acts = AKB48 Group, Monta Mino | website = | past_members = List of members SDN48 (read S.D.N. Forty-Eight, short for Saturday Night 48) was a Japanese idol girl group, created and produced by Yasushi Akimoto. SDN48 was created based on an "adult idol" concept. Former AKB48 member Kayo Noro was chosen as the captain of the group. In November 2010, the group made their major label debut with "Gagaga". The group ended with a farewell concert on March 31, 2012.

History

2008–2009: Formation

In 2008, AKB48 producer Yasushi Akimoto decided to create a "Saturday Night 48" show, based on the concept of an "adult idol" that would perform every Saturday at 10 pm. The shows were restricted to fans aged 18 and older. He also wanted to differentiate from AKB48's usual uniforms with sexier attire. In July 2009, two AKB48 members, Megumi Ohori and Kayo Noro, were chosen as the first two members of the group. At the same time auditions were held to find other members. The SDN48 debut stage Yūwaku no Garter was held on July 25. At the end of AKB48's three-day Nippon Budokan concert the teams were reshuffled, leading to the removal of Kayo Noro, Megumi Ohori, Yukari Sato, and Kazumi Urano, leaving them to focus solely on SDN48 activities. Noro was also made the captain of the group.

It was announced on September 27, 2009, that understudy Yuki Iwata had departed from the group for health reasons. Two months later, Eiko Maeda was transferred from sister group SKE48 to SDN48. Upon joining the group Maeda changed her stage name to Machiko Tezuka.

2010–2011: Major label debut

During their first anniversary concert, Noro announced to the audience that SDN48 would debut under Universal Music in the fall. The group also suggested they would be eliminating the age restriction. Through their TV show, Suppon no Onna-tachi, SDN48 held a senbatsu election to determine the top twelve members who would participate in their debut single. Former AKB48 member Megumi Ohori ranked first in votes and was given the center position. The single would be titled "Gagaga" and be released on November 24, 2010. On September 30, second generation member Sakura Fukuyama announced through her blog that she would be leaving the group due to health problems. Chinese member Chen Qu was chosen as Fukuyama replacement. The group was scheduled to release their second single "Ai, Juseyo" on March 23, 2011; however, due to the Tōhoku earthquake and tsunami on March 11, the single was postponed until April 6.

2012: Disbandment

On March 31, 2012, all the members graduated from the group and the group was disbanded. On April 19, 2012, former SDN48 members participated in AKB48's 2nd revival stage concert which took place on May 15.

2013: Reunion and new projects

On March 31, 2013, one year after the disbandment, an SDN48 reunion concert was held at AKB48 theater.

On May 6, 2013, it was announced that seven former members were creating a new group called 7cm. The group was under Avex and the members include Juri Kaida, KONAN, Mana Ito, Haruka Umeda, Megumi Imayoshi, Mami Kato and Miyuu Hosoda. The group disbanded on August 30, 2013.

Members

First generation

Kazue Akita
Megumi Imayoshi
Haruka Umeda
Kazumi Urano (former AKB48 Team B member)
Misa Okochi
Megumi Ohori (former AKB48 Team K member)
Jyuri Kaida
Mami Kato
Masami Kochi
Haruka Kohara (former AKB48 Team B member)
Sayaka Kondo
Yukari Sato (former AKB48 Team A member)
Serina
Chen Qu
Machiko Tezuka (former SKE48 member)
Nachu
Reiko Nishikunihara
Kayo Noro (Captain; former AKB48 Team K member)
Chisaki Hatakeyama
Hiromi Mitsui

Second generation

Yuki Aikawa
Akiko
Mana Ito
Aimi Oyama
Yuki Kimoto
Konan
Yui Takahashi
Marina Tsuda
Natsuko
Akane Fukuda
Yumi Fujikoso
Miyuu Hosoda
Rumi Matsushima

Third Generation

Seara Kojo
Hitomi Komatani (former AKB48 Team A member)
Saemi Shinahama
Jung Si-yeon
Hana Tojima (former AKB48 Team A member)
Miray

Former members

Ayami Nakazato (graduated December 24, 2009), a former Kishidan back dancer, and OZ-MAX member Ayami of DJ OZMA
Sakura Fukuyama (graduated October 2010)
Kana Ito (graduated February 2011)
Yuka Ninomiya (graduated May 2011)
Tomomi Tanisaki (graduated May 2011)
Sayo Hayakawa (graduated July 2011) ;Understudy
Yuki Iwata (withdrew September 24, 2009)

Discography

Singles

::data[format=table] | Year | Single | Charts | Album | Oricon sales | JPN | KOR | First week | Total sales | |---|---|---|---|---|---|---|---|---| | 2010 | "Gagaga" | 3 | 27 | Next Encore | 63,627 | 79,128 | | | | 2011 | "Ai, Chuseyo" | 3 | — | 64,020 | 71,236 | | | | | "Min Min Min" | 3 | — | 72,584 | 82,543 | | | | | | "Kudokinagara Azabu-Jūban Duet With Mino Monta" | 3 | — | 67,018 | 69,885 | | | | | | 2012 | "Makeoshimi Congratulation" | 2 | — | — | 74,459 | 90,507 | | | ::

Albums

::data[format=table] | Year | Album | Charts | Oricon sales | JPN | First Week | Total sales | |---|---|---|---|---|---|---| | 2012 | Next Encore | 1 | 48,085 | 50,312 | | | | Yūwaku no Garter | 31 | | | | | | ::

SDN48 1st Stage "Yuuwaku no Garter"

All SDN48's members did perform only one stage, "Yuuwaku no Garter". They usually were divided as 1st and 2nd/3rd generation stages. They performed at the AKB Theater.

References

(2008-11-19). "AKB48 expands with "kid" concerts, HKT group". [[Nikkan Sports]].
(2009-07-18). "Ohori, Noro recruited for SDN48". [[Sports Nippon.
(2009-07-21). "AKB48セクシープロジェクトにチームK大堀＆野呂参加". Natasha Inc.
(24 August 2009). "AKB48 shuffles its teams". Natalie.
(27 September 2009). "Yuki Iwata leaves SDN48". [[Sports Nippon.
(29 November 2009). "SKE48's Eiko Maeda joins SDN48". [[Sports Nippon.
(2 February 2010). "SKE48、チームKII「会いたかった」＆名古屋一揆がDVD化". Natasha Inc.
(1 August 2010). "SDN48 getting major label debut". [[Oricon]].
(9 September 2010). "SDN48選抜メンバー12人が決定、CDデビューは11月24日". Natasha Inc.
(8 September 2010). "Megumi Ohori ranks #1 in SDN48 Senbatsu". [[TV Asahi]].
(30 September 2010). "SDN48's Sakura Fukuyama leaves show business". Natalie.
link. (4 October 2010). Gree
"SDN48". [[Universal Music Japan]].
(3 April 2012). "SDN48's graduation concert". Yahoo! Malaysia.
(28 January 2013). "SDN48 Holds Surprise Performance + Announces Reunion Concert". Jpopasia.
(8 May 2013). "7 Ex-SDN48 Members Form New Group: 7cm". Japanverse.
[http://mdpr.jp/021155090 "Former SDN48 member announces her return to modeling after 5 months absence"] {{Webarchive. link. (2014-10-23 , 18 October 2011, ''[[:ja:モデルプレス). Model Press]]'' {{in lang. ja
"SDN４８のシングル売り上げランキング". Oricon.
"SDN48 Japanese Discography on ORICON STYLE". [[Oricon]].
"Gaon Chart". [[Gaon Chart]].
"SDN48のアルバム売り上げランキング". Oricon.

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