July 2009. She was the first leader of the group, until September 2010. Hahm featured in Davichi's music video "Time, Please Stop" ("") which was released on May 6, 2010. Her first major acting role since joining T-ara was in SBS drama Coffee House, which aired on from May 17, 2010, to July 17, 2010. That same year, she was cast in the horror film White: The Melody of the Curse. Hahm's popularity began to rise in 2011, when she starred in the teen drama Dream High. The drama was a success, and brought high domestic viewership ratings, and also gaining popularity in other countries and winning several international awards. From 2011 to 2012, she joined MBC's variety program We Got Married, pairing up with actor Lee Jang-woo. She won the Best Newcomer Award at the MBC Entertainment Awards. Hahm then starred in historical dramas The King of Legend and Insu, The Queen Mother. In June 2012, Hahm was confirmed to star in the drama Five Fingers. However, on August 22, it was revealed that she had been dropped from the drama. The Korean Actors Labor Union demanded that Hahm be issued an apology by the producer and crew. In February 2013, Yein E&M issued a formal apology for firing Hahm without notice. In October 2013, MBK Entertainment announced that Eun-jung participated in the arrangement of T-ara's upcoming track "I Know The Feeling" from their newest EP Again. Deoksang Park, the composer of the co-title song proposed to Eun-jung to collaborate on the arrangement. 2014–2017: Return to acting and solo debut Hahm made her return to acting in 2014, with SBS' weekend drama Endless Love. In 2015, it was announced that Hahm would play the lead role in the Thai romantic comedy Micro Love, making her the first female idol to star in a Thai movie. In May 2015, Hahm made her solo debut under the stage name ELSIE. She released her first mini album I'm Good, with the lead single of the same name featuring K.Will. The Chinese version of her music video peaked at #2 on the Chinese YinYueTai'''s music video charts. On October 14, Hahm released the song Goodbye, as the soundtrack of T-ara's web-drama Sweet Temptation. The song was also included in her repackaged mini album, Goodbye, released on October 30. In 2016, Hahm was cast in Flowers of Evil, a thriller directed by Cho Sung-kyu.