Question: Dave Gahan and Hahm Eun-jung, have which mutual occupation?

Context paragraphs:
Angels &amp; Ghosts: Angels & Ghosts is the fifth full-length studio album from English electronica production duo Soulsavers, released worldwide by Columbia Records 23 October 2015.  It is their second collaboration with Dave Gahan, the frontman of Depeche Mode, as guest vocalist and songwriter, this time released under the moniker Dave Gahan & Soulsavers.

Hahm Eun-jung: 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".

Saw Something / Deeper and Deeper: "Saw Something" and "Deeper and Deeper" are songs performed by Depeche Mode's singer Dave Gahan, co-written and co-produced by Gahan, Andrew Phillpott, and Christian Eigner for Gahan's second solo album "Hourglass" (2007).  The songs were released as a double A-side single on January 14, 2008.  "Saw Something" features the Red Hot Chili Peppers's ex member John Frusciante's guitar playing.  The song was used in the trailer of the 2009 film "Obsessed" and the upcoming film "Claustrum".

Dave Gahan: David "Dave" Gahan ( ; born David Callcott; 9 May 1962) is an English singer-songwriter, best known as the baritone lead singer of the electronic band Depeche Mode since their debut in 1980.  He is also an accomplished solo artist, releasing albums in 2003 ("Paper Monsters") and 2007 ("Hourglass").

Das Shadow: Das Shadow is a band created by Andrew Phillpott, who is known for co-writing with Christian Eigner and Dave Gahan from Depeche Mode.  Das Shadow started as a production/remix project, remixing for Dave Gahan, Yazoo and Veto.

Fragile Tension / Hole to Feed: "Fragile Tension"/"Hole to Feed" is Depeche Mode's third single from their studio album, "Sounds of the Universe", their 48th UK single overall, and their third double A-side single, following "Blasphemous Rumours / Somebody" and "John the Revelator / Lilian".  "Hole to Feed" is the second Depeche Mode single written by Dave Gahan along with co-writers Christian Eigner and Andrew Phillpott, succeeding the first being "Suffer Well", from their previous album "Playing The Angel".  Gahan told "The Guardian" that "Hole to Feed" is, "a very cynical song about wanting to fill a gaping hole but not knowing what to fill it with.  About sometimes the idea of having a hole to feed all being a figment of my imagination when I'm actually fine."

Kingdom (song): "Kingdom" is a song performed by Depeche Mode's singer Dave Gahan.  The song was written and produced by Gahan, Andrew Phillpott, and Christian Eigner for Gahan's second solo album "Hourglass" (2007).  The song was released as the album's first single in October 2007.  The single version removed the third stanza of the first verse, the instrumental part preceding the second chorus, and most of the bridge at the end.

Sisters-in-Law (TV series): 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.

The Light the Dead See: The Light the Dead See is the fourth full-length studio album from English electronica production duo Soulsavers, released by V2 Records in the UK on 21 May 2012, and by Mute in the US on 22 May 2012.  The album title comes from a poem by Frank Stanford The album is a collaboration with Dave Gahan, the frontman of Depeche Mode, as guest vocalist.  Gahan sings and has also written lyrics to all non-instrumental songs on the album.

Good Bye (EP): 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".

Supporting paragraphs: Dave Gahan Hahm Eun-jung
Answer: singer