|Origin||Seoul, South Korea|
|Genres||K-pop, electropop, electro house, dance-pop|
|Labels||Trophy Entertainment, Yedang Entertainment (South Korea)
Tokuma Japan Communications (Japan)
CHI CHI (Hangul: 치치) was a South Korean girl group under Trophy Entertainment and Yedang Entertainment. The group's name is an acronym for "Creative electronic House Idols" which represents their overall music style. The group made their official debut in March 2011 with the single "Jangnanchijima" (장난치지마, "Don't Play Around"). As of October 2013, the group has been disbanded.
2011: Debut, "Longer" and lineup changes
Prior to their debut, CHI CHI held a showcase to promote the release of their single "Jangnanchijima" (장난치지마, "Don't Play Around") on March 18, 2011. At the event, they performed in front of news reporters as well as partaking in their first press conference hosted by actress and label-mate Hong Soo-ah. The group's music video was released on March 18, 2011 co-starring actor Lee Jong-suk of the television drama Secret Garden. CHI CHI then made their television debut on SBS's Inkigayo on March 20, 2011. After several performances, the members began receiving requests from producers to appear on variety shows. They were also featured on the dance game Audition Online.
CHI CHI revealed plans to return with a new single in May. However, it was delayed and the single was pushed back to July. They have also gained an endorsement deal with “Yoheim Smoothie”. The single, titled "Longer", was released on July 21. The single features 3 different versions of the title track. The MV was also released on the same date. The song peaked at number sixty-six on the Gaon weekly digital chart.
CHI CHI made their foray into reality television with ETN's Hot Shot, which premiered on August 12. It showcased behind the scene episodes revolving around CHI CHI and their daily ventures. Rookie boyband HITT have made a guest appearance on the show.
Reflexjun, a choreographer of Yedang Entertainment, revealed on Twitter that CHI CHI could possibly comeback with an album next year. On November 23, it was announced that CHI CHI would participate in Yedang Entertainment's first overseas concerts in Asia and the United States. CHI CHI has appeared on Japanese television shows such as Star VJ Show and K-pop Idol Toryumon.
On December 12, 2011, it was revealed that Nara, Peach, and Ji-U were no longer members of CHI CHI and that a replacement member, Shine, was added.
2012: Japanese debut, "Love is Energy", and rumored comeback
CHI CHI debuted in Japan with a remake of their Korean single, "Jangnanchijima", re-titled as "Karakawanaide!! (Jangnanchijima)" (からかわないで!! -ジャンナンチジマ-; "Don't Play Around"). CHI CHI held a showcase titled Shibuya CHI-CHI Festival in Japan every month until its release. The single was released on April 25, 2012, through Tokuma Japan Communications, peaking at number fifty-eight on the Oricon charts.
CHI CHI released their third Korean single "Love is Energy" on June 29. The choreography for the song, with a signature dance move called the "hand blender," gained a lot of attention both in Korea and internationally.
Some photos were leaked in early fall 2012 apparently showing member A-Zi in a recording studio, as well as an image of Shine, A-Zi, Sui and Semi in white vintage dresses. Member Boreum has not made any appearances with the group since the summer of 2012 (the company released a statement she was "too unwell" to perform in a 2012 Christmas concert) leading to speculation that she has departed the group.
On October 23, 2013, CHI CHI's choreographer, Reflexjun, posted a statement on twitter regarding their current status. He revealed that CHI CHI has since disbanded as of 2013. Before this announcement, it was already speculated by fans that some members left several months ago due to twitter inactivity (dating back to January/February of 2013) and the removal of "CHI CHI" in their profiles.
Shine is speculated to be the last member who left the group due to having several solo activities without the group. Her last appearance as "Shine" was in MBC Every1's "Korean Art Idol Competition" back in May 2013. Shine now goes by the name "Eden" and has joined SB entertainment.  Eden starred in Kim Jaejoong's "Just Another Girl" MV, making it her first activity since leaving CHI CHI. 
|Stage name||Birth name||Birthdate|
|Shine||샤인||Lee Jia||이지아||July 10, 1990|
|Semi||세미||Park Semi||박세미||September 14, 1991|
|A-zi||아지||Baek Soyoung||백소영||September 30, 1992|
|Sui||수이||Kim Solee||김소리||October 5, 1994|
|Stage name||Birth name||Birthdate|
|Nara||나라||Yoon Hyewon||윤혜원||July 28, 1988|
|Ji-U||지유||Lee Yoonji||이윤지||December 3, 1990|
|Peach||피치||Son Jungae||손정애||June 3, 1991|
|Boreum||보름||Lee Boreum||이보름||September 20, 1993|
|2011||"Jangnanchijima" (장난치지마, "Don't Play Around")
|2012||"Love is Energy"
|Year||Information||Tracklisting||Peak chart positions||Sales|
Awards and nominations
|2011||Seoul Success Awards||Newcomer Award||Won|
|2012||Seoul Music Awards||Newcomer Award||Nominated|
- "예당 엔터, 7인조 걸그룹 ‘치치’ 선봬 (Yedang Entertainment to debut new idol girl group, CHI CHI)" (in Korean). Nate. 2011-03-09. Retrieved 2013-02-07.
- (Korean)예당 새걸그룹 치치, '강렬+상큼' 첫선.."소시 따라잡겠다" (CHI CHI holds a showcase before their debut.)
- CHI CHI debuts on Inkigayo with “Don’t Play Around”
- (Korean)걸그룹 치치, 데뷔 1주만에 '완판돌' 등극(CHI CHI is already receiving variety program requests)
- (Korean)걸그룹 치치, 데뷔 1주만에 '완판돌' 등극(Amateur girl group CHI CHI cross promote with Audition Online)
- (Korean)치치 "소시 따라잡겠다는 말, 존경의 표현"(인터뷰) (CHI CHI clarifies that SNSD is their role model + reveals plans for May comeback.)
- CHI CHI’s Ji-u shares comeback concept photos
- (Korean)걸그룹 치치, 요거트 광고 모델 발탁 (Girl group CHI CHI chosen for yogurt ad models)
- (Korean)히트, 걸그룹 치치와 `핫샷` 바통터치 (HITT and CHI CHI meet for the first time through ‘Hot Shot’)
- (Korean)예당, 대규모 콘서트 추진 (Yedang, large-scale concert promotion)
- (Korean)걸그룹 치치, 내년 4월 日 데뷔
- "ＣＨＩ－ＣＨＩのCDシングルランキング、ＣＨＩ－ＣＨＩのプロフィールならオリコン芸能人事典-ORICON STYLE". Oricon Style. Oricon Inc. Retrieved August 18, 2012.
- "Chi-Chi (Creative Electronic House Idols) Profile". SuMandu Kpop Guru. Retrieved January 20, 2012.