Park Nahyeong, also known as her stage name, Nahyeong, is a member of the 10 member girl-group, Korean Girls. She is the leader and the center of the group. Before she was a member, she auditioned for Boo Entertainment and trained for over 7 years, the longest training time compared to other members. She debuted with the other 9 members to form the 10 member girl group, Korean Girls on October 27, 2019. She was extremely popular on her debut and decided to be the center and the leader of the group, as her popularity soars.

 

After when Korean Girls debuted, she opened up her Instagram account in January 2020. Boo Entertainment announces the comeback of Korean Girls, as part of the "Colors Of The World Project" in December 2019. The first one being the color of Red, representing Nahyeong's color, according to their debut MV. On February 14, 2020, the group comes back with their song, Dumb on their 1st mini-album, Red Lie. The group popularity had skyrocketed, making Nahyeong's popularity even higher and more fans. Some people say that the comeback was her era. They gained their first music show win on Sunset Music Show, due to the immense popularity.

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Boo Entertainment announces that Nahyeong will be having her own solo debut after the promotions of Korean Girls. Nahyeong will have her solo debut, with her song, Do you Love Me? on March 14, 2020. 

 

Korean Girls will have her debut in China in May, as announced by the CEO of Boo Entertainment. They debuted with Moonlight Thoughts on May 1, 2020. Chinese fans are praised and the Chinese debut was a success, especially for Nahyeong. After the promotions, Nahyeong promotes herself in commercials and advertisements. Two of her famous commercials were Hera Lipsticks from Starship Media, and KI$$ Lipsticks, as their main model and sponsor from Jewel Entertainment and her best friend, Min-E.

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She participated as a member of Korean Girls, on their comeback, Happy, on their 2nd mini-album, Citrus Vibe on June 5, 2020. This comeback also serves a part in the Colors Of The World Project. On the same day, it was announced that her contract with KI$$ Lipsticks has been expired.

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In June 2020, Sunset Music announced that Nahyeong and Korean Girls will have their own reality show, Fun at the Colorhouse. The first episode aired on July 1, 2020.

 

On July 25, it was announced that Nahyeong will feature on Dahyun's 3rd mini-album, What You Waiting For. The music video was released 3 days after the announcement on Instagram SNS. 

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On August 7, 2020, the main track of the 3rd mini-album of Korean Girls, Vacation, and the rest of the songs of the album, has been revealed, along with the album and music video release. 

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On September 30, Nahyeong participated with Korean Girls, on their special Chuseok video. She also appeared on their group's special Dynamite music video, as a special gift to Colorwaves. On October 7, Korean Girls announced that she will take a break from the group's activities, due to personal reasons.