Lee Chae-yeon (; born January 11, 2000) is a South Korean singer, dancer, and actress. She was a member of the South Korean-Japanese girl group Iz*One, and made her solo debut in 2022 with her first extended play (EP), Hush Rush.
Lee Chae-yeon was born on January 11, 2000, in Yongin, South Korea. She is the older sister of Chaeryeong, a member of the girl group Itzy.
In 2013, Lee appeared as a contestant on the third season of K-pop Star alongside her sister Chaeryeong. Both were praised for their dancing skills and soon became trainees at JYP Entertainment. In 2015, the sisters participated in Mnet's reality girl group survival show Sixteen, which determined the lineup for the girl group Twice. After being eliminated in the third episode, she left JYP Entertainment and later joined WM Entertainment.
On June 15, 2018, Lee represented WM Entertainment on the girl group survival reality show Produce 48. As one of the twelve successful participants, she became a member of the newly formed Korean-Japanese girl group Iz*One. The group officially debuted on October 29 with the release of their first EP, Color*Iz, and its lead single "La Vie en Rose". Iz*One won New Artist of the Year awards at several shows, including the Golden Disc Awards and the Seoul Music Awards.
Following the expiration of their contract, Iz*One disbanded on April 29, 2021.
On July 11, 2021, WM Entertainment announced that Lee would participate in the reality TV show Street Woman Fighter as one of the dance crew members. In September, it was revealed that Lee, along with former Iz*One members Jo Yu-ri and Kang Hye-won, would co-host a new web series titled Adola Travel Agency: Cheat-ing Trip. On December 13, she appeared alongside Kang Chan-hee in a short promotional video produced by the Busan Tourism Organization.
On September 15, 2022, WM Entertainment announced that Lee would make her solo debut. She released her first EP, Hush Rush, along with the music video for its lead single of the same name, on October 12. On November 18, Chaeyeon and singer Ha Sung-woon officially released the duet "Talk To Me", which they originally performed at the 2024 K-World Dream Awards.
Lee released her second EP, Over the Moon, on April 23, 2023, which featured the lead single "Knock". The single peaked at number 26 on the Circle Digital Chart. On September 6, she released her first single album, The Move: Street, with the lead single "Let's Dance".
Her third EP, Showdown, was released on July 3, 2024, led by the single "Don't". On April 18, 2025, Lee made her television drama debut, starring in Let's Dance.
On September 12, 2025, Lee's contract with WM Entertainment was terminated by mutual agreement. Lee joined DOD Entertainment in December 2025.
All song credits are adapted from the Korea Music Copyright Association's database unless stated otherwise.