On January 9, CLC held their first solo Japan fanmeeting at Tower Records in Tokyo.
On January 17, 2017, CLC released their fifth Korean EP, Crystyle.
It marked a revamped image for the group, with a more charismatic, hip-hop concept.
The EP contains six tracks including the EDM/trap lead single "Hobgoblin" (도깨비), which was co-written by Seo Jae-woo, Big Sancho, Son Yeong-jin, and HyunA. Crystyle debuted on Billboard's World Albums chart at #6, while "Hobgoblin" peaked at #4 on the World Digital Song Sales chart.
On May 27, the group held the first fan-meeting for their fan-club, Cheshire, "2017 Cheshire Entrance Ceremony".
It took place in the Olympic Hall Muse Live in Seoul.

CLC released their sixth EP, Free'sm on August 3.
The album title is portmanteau upon the words "prism" and "free", which describes the group's musical and conceptual direction for this EP.
The album is inspired by 1990s girl groups Fin.
K.L and S.E.S.. It consists of six tracks including the R&B ballad lead single "Where Are You?" (
어디야?).
This was another new image for the group, contrasting with the group's previous concept with "Hobgoblin".
On January 9, CLC held their first solo Japan fanmeeting at Tower Records in Tokyo. On January 17, 2017, CLC released their fifth Korean EP, Crystyle. It marked a revamped image for the group, with a more charismatic, hip-hop concept. The EP contains six tracks including the EDM/trap lead single "Hobgoblin" (도깨비), which was co-written by Seo Jae-woo, Big Sancho, Son Yeong-jin, and HyunA. Crystyle debuted on Billboard's World Albums chart at #6, while "Hobgoblin" peaked at #4 on the World Digital Song Sales chart. On May 27, the group held the first fan-meeting for their fan-club, Cheshire, "2017 Cheshire Entrance Ceremony". It took place in the Olympic Hall Muse Live in Seoul.
CLC released their sixth EP, Free'sm on August 3. The album title is portmanteau upon the words "prism" and "free", which describes the group's musical and conceptual direction for this EP. The album is inspired by 1990s girl groups Fin.K.L and S.E.S.. It consists of six tracks including the R&B ballad lead single "Where Are You?" (어디야?). This was another new image for the group, contrasting with the group's previous concept with "Hobgoblin".
CLC (group)