Question: Which South Korean Singer is also an actress: Park Bom or Hahm Eun-jung?
Context: Goodbye is the re-issued EP by Hahm Eun-jung (also known as Elsie).  The title song is "Goodbye," which is an OST of Eun-jung's Webdrama "Only for You". Love Love Love is the debut studio album by South Korean singer-songwriter Roy Kim, released and distributed on June 25, 2013 through CJ E&M Music.  The album features nine tracks in total, and spawned two hit singles: the million-selling hit "Bom Bom Bom" and the lead single under the same title.  Due to the album's success, Kim earned a Mnet Asian Music Award for Best New Male Artist, and a Golden Disk Award for New Rising Star Award in Disk Album.  As of July 2016, "Love Love Love" has sold over 19,000 physical copies and 2.94 million individual track downloads in Kim's native country (see Roy Kim discography). 99 is the seventh studio album by the South Korean hip hop group Epik High.  It was released online on October 19, 2012 and in physical CD format on October 23.  The title tracks were “Up,” a hip-hop song featuring 2NE1’s Park Bom, and “Don’t Hate Me."  The album also included the previously released collaboration with Lee Hi, "It's Cold." Hahm Eun-jung (born December 12, 1988), better known by the mononym Eunjung, also known as Elsie, is a South Korean singer and actress.  She is best known for being a member of South Korean girl group T-ara.  In May 2015, she made her solo debut as Elsie with mini album "I'm Good". Eun-jung, also spelled Eun-jeong or Un-jong, is a Korean feminine given name.  Its meaning differs based on the hanja used to write each syllable of the name.  There are 26 hanja with the reading "eun" and 75 hanja with the reading "jung" on the South Korean government's official list of hanja which may be used in given names.  Eun-jung was the third-most common name for baby girls in South Korea in 1970, falling to sixth place in 1980. Maeng Se-chang (born November 13, 1991) is a South Korean actor and singer.  Maeng started his career as a child actor.  In 2011, he revealed his hidden ambitions as a singer.  In July 2011, he debuted as the leader of the ballad group "BoM" with a single album "Without You."  However, BoM was disbanded in March 2013. Sisters-in-Law () is a 2017 South Korean television series starring Hahm Eun-jung, Lee Joo-yeon, Kang Kyung-joon, and Cha Do-jin.  The series airs daily on MBC from 20:55 to 21:30 (KST), however, starting episode 41, the series was moved to Monday and Tuesday 20:55 (KST) time-slot with 2 episodes back-to-back. Sunmin (Hangul: 선민, "Katakana": ソンミン, born August 4, 1987) is a South Korean singer who speaks and sings in Korean, Japanese, and English.  She debuted in 2006, with the single "Keep Holding You," a collaboration with the Japanese R&B singer Toshinobu Kubota.  Her career was initially focused on the Japanese market, but her work became focused in South Korea from 2009 to 2010.  She also contributed to original soundtracks of South Korean television series "Master of Study" and "Gloria (2010 TV series)".  In 2010 to 2011, she was in the main South Korean musical production of "Jekyll & Hyde" as Lucy.  In 2012 to 2013, she reprised her role as Lucy in the South Korean national tour.  In spring 2013, Sunmin played Josephine in the South Korean production of "Arsène Lupin", the musical. Park Bom (born March 24, 1984), better known by the mononym Bom, is a South Korean singer.  She is best known as a member of the South Korean girl group 2NE1.  The group announced their disbandment on November 25, 2016. Korean singer Lee Hi is a South Korean singer under YG Entertainment.  She is known as the runner-up of SBS's "K-pop Star Season 1".  Her debut single "1.2.3.4", was released on October 28, 2012 and reached No. 1 with first-week sales of 667,549 downloads.  On March 28, 2013 Lee Hi released her first album, which sold 17,309 copies and total 5,488,390 digital singles.  On the end of 2013 Lee Hi released a collaboration with Park Bom of 2NE1, a cover of Mariah Carey's single "All I Want for Christmas Is You".  In 2014 she made a unit with Akdong Musician's Lee Suhyun, and released "I'm Different" features Bobby of iKON.  After three years from her first album, Lee Hi released a half album titled "Seoulite" digitally on March 9, 2016, including five songs.  The full album "Seoulite" was released on 20 April and has 11 songs.
Answer: Hahm Eun-jung