CLC (씨엘씨; short for "CrystaL Clear") is a seven-member South Korean girl group formed by Cube Entertainment in 2015. The group consists of Seunghee, Yujin, Seungyeon, Sorn, Yeeun, Elkie and Eunbin.

In 2014, Cube Entertainment teased their first girl group in five years since 4minute. Prior to their debut, CLC made their first appearance as back-up dancers for G.NA. The group began to gain publicity through street performances that raised money for children with disabilities. These featured on their online reality show CLC's Love Chemistry.

The original member line-up for CLC was a five-member line-up consisting of Seunghee, Yujin, Seungyeon, Sorn, and Yeeun. They released their first extended play First Love, including the lead single "Pepe", on March 19, 2015. Their debut showcase was held the day before at the Acts Hotel in Seoul, where they performed their debut song for the first time. They made their debut music show performance on M! Countdown.

On April 16, CLC released a digital single titled "Eighteen", described as a song about teenage love influenced by 1960s/70s motown and 1980s synthpop. They began promotions for the single the following day on Music Bank. Their second extended play Question was released a month later on May 28. Its lead single "궁금해 (Like)" was first performed on M! Countdown on May 28.

On February 29, 2016, CLC released their third extended play REFRESH along with title track "예뻐지게 (High Heels)". This marked the addition of two new members: Elkie and Eunbin. At the time, Eunbin was participating in the idol survival show Produce 101. Cube Entertainment stated that Eunbin had been part of the group's original lineup, but was dropped following delays in production of the group's debut album. Due to Produce 101 contractual restrictions, Eunbin was not able to promote the single "High Heels" on music shows or other broadcasts, nor appear in the single's music video. The agency planned for Eunbin to join promotions in the event that she was eliminated from the show, or else to postpone her activities as part of the group until after Produce 101 promotions if she was a winner. On February 29, a short version of the "High Heels" music video that included Elkie but omitted Eunbin was released. The full version of the music video, including Eunbin, was released on March 21.

CLC made their Japanese debut on April 13, 2016 with the release of their first Japanese extended play High Heels. The album includes the Japanese version of "Pepe", "First Love", "Like", "High Heels", and a cover of Kylie Minogue's "I Should Be So Lucky". The showcase for the album was held without Eunbin, who was still competing in Produce 101 at the time.

On May 23, Cube Entertainment began uploading group and individual photo teasers for CLC's fourth mini-album. This would mark the first release with Eunbin as an official member. From the released images, CLC showed a funky and unique concept with the use of fancy neon colors, highlighting the "sly-dol" image. On May 30, 2016, they released their fourth extended play NU.CLEAR along with title track "아니야 (No Oh Oh)". Member Yeeun participated in song-writing for three of the tracks on the album. The group made their first music show performance on Show Champion, performing both "No Oh Oh" and "One, Two, Three".

In the last month of December, CLC confirmed that they would be going for a concept revamp for their next extended play. They later teased a more charismatic, hip-hop girl crush image. On January 17, 2017, CLC released their fifth extended play CRYSTYLE. The extended play contains six tracks including the EDM/trap lead single "도깨비 (Hobgoblin)". Labelmate Hyuna helped with the concept design and song-writing of the album. CRYSTYLE debuted on Billboard's World Albums chart at #6, while "Hobgoblin" peaked at #4 on the World Digital Song Sales chart.

On August 3, CLC released their sixth extended play FREE'SM. The album title is portmanteau upon the words "prism" and "free", which describes the group's musical and conceptual direction for this extended play. The album is inspired by 1990's girl groups Fin.K.L and S.E.S.. It consists of six tracks including the R&B ballad lead single "어디야? (Where Are You?)". The album debuted at #10 on the Gaon Album Chart.

On February 1, 2018, CLC released a pre-release single from their upcoming album titled "To The Sky". On February 12, their agency stated that CLC's upcoming extended play "will show off its charm and maturity by focusing on a chic and charismatic performance with a hip-hop, EDM and dance-based composition". On February 23, CLC released their seventh extended play BLACK DRESS along with title track "BLACK DRESS".

In late 2018/early 2019, Cube Entertainment announced plans for CLC's upcoming comeback. Their eighth seventh extended play No.1 on January 30. No.1 debuted at #5 on Billboard's World Albums chart. On February 12, CLC earned their first music show win on The Show with title track "No". Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.