In 2007, she was revealed as a third member of Wonder Girls, a girl group managed by JYP Entertainment, after two years of training. The group debuted with the single "Irony", featuring Sohee as a dancer and vocalist with the group. The group quickly rose to stardom with their hits "Tell Me", "So Hot" and "Nobody" in less than two years from their debut. Sohee herself earned the title of "Nation's Little Sister". In particular, she is known for her unique catchphrase "Omona" from the song "Tell Me", which became a national craze. In an official JYP Entertainment announcement, it was revealed that Sohee would not renew her contract with the company, thus ending her six-year membership as part of Wonder Girls. Her contract with the company expired on December 21, 2013.
Acting career and other activities
Sohee made her acting debut at the age of 12 with a minor role in a short filmThe Synesthesia For Overtone Construction directed by Yu Dae-eol in 2004, acting as a deaf girl. In early 2008, Sohee made her big screen debut alongside Lee Mi-sook and Kim Min-hee in the romantic comedyHellcats, directed by Kwon Chil-in of Singles. The film is adapted from the popular Korean comic 10, 20 and 30, and is about the views of modern Korean women towards love and life. In 2013, Sohee landed first leading role in Happy! Rose Day alongside Jung Woong-in, a drama about a girl in her early 20s who works at a flower shop. In 2014, after leaving Wonder Girls and former agency JYP Entertainment, Sohee signed with the management agency, BH Entertainment. The same year, Sohee starred in tvN's romantic comedy seriesHeart to Heart, playing an aspiring actress. On September 21, 2015, Sohee officially left BH Entertainment, as she decided not to renew her contract with them. Sohee later signed with KeyEast. In 2016, Sohee starred in South Korea's first zombie movie, Train to Busan, playing a high school student and a loyal supporter of the baseball team. The film premiered in the Midnight Screenings section at the 2016 Cannes Film Festival on May 13, 2016. and later surpassed 11 million admissions. Despite the film's success, Sohee received criticisms for her acting performance. Later that year, she featured in tvN's Korean remake of the American series Entourage, playing the love interest of Seo Kang-joon's character. In 2017, Sohee starred in the thriller Single Rider alongside Lee Byung-hun and Gong Hyo-jin, where she received praise for her portrayal of a solitary teenager. In 2018, Sohee acted as Anu, who is a lively and assertive Mongolian woman with Yeon Woo-jin as Hyuga, a pure-hearted Mongolian man on the short movieAnu and Hyuga, also called as Mongolian Love Story. In 2019, Sohee was cast as one of the female lead roles in Welcome to Waikiki 2. In July 2019, Sohee starred in a short film Memories, playing as a mysterious woman.
