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Defconn

b. 1977

South Korean hip hop singer and occasional comedic television presenter

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About Defconn

Born 1977. Defconn is a South Korean singer, composer, songwriter and comedian.

Yoo Dae-joon (; November 17th, 1976), known by his stage name Defconn , is a South Korean rapper and television personality.

Biography

2004 In 2004, Defconn received the Korean Music Award for "Best Hip-Hop Album". His songs are mostly comical, sometimes involving lyrics about sexual attraction and wishing for more popularity. One song of his, though, centered on the Yangju highway incident in which two South Korean girls lost their lives to an American military tank, which sparked anti-American sentiment in South Korea at the time. He is one of the better known underground rappers in South Korea due to his parallel career as an MC.

2011–present In 2011, he became the host of MBC Every1's Weekly Idol alongside entertainer and comedian Jeong Hyeong-don, a show which was extended from an original six episode special to a weekly show that continues today.

In June 2012, he and Hyungdon formed a hip-hop collaboration called Hyungdon and Daejun.

Defconn is a founding member of MBC's I Live Alone, a documentary-style variety program focusing on the real lifestyles of men who live alone. The "Rainbow Club" – a self-designated nickname for the show's hosts – includes both men who are unmarried and men who live alone because their families live overseas. Defconn left the cast in July 2014, citing that he was moving in with his brother and would no longer be living alone.

In November 2013, Defconn became a cast member for the third season of KBS2's Happy Sunday segment 2 Days & 1 Night, and he remained so until 2019, when the third season ended.

Discography Straight From The Streetz (September 2001) Lesscon 4 the People (May 13, 2003) 1 1-2 Rawyall Flush (October 16, 2003) 콘이 삼춘 다이어리 (November 23, 2004) City Life (April 13, 2006) Mr. Music (July 10, 2007) Green Tour (March 5, 2008) Sugar Love – Single (March 12, 2009) Macho Museum (March 16, 2010) "King Wang Zzang" (feat. Kim Hee-chul) – Digital Single (November 20, 2010) 이별병 – Digital Single (March 30, 2011) The Rage Theater (August 4, 2011) Gangsta Rap Volume 1 (June 2012) L'Homme Libre Vol. 1 (August 2013) I'm Not a Pigeon (April 2015)

2018 Drunken Tiger X : Rebirth Of Tiger JK

Filmography

TV shows Variety Weekly Idol (2011–2018) 2 Days & 1 Night (2013–2019) Her Secret Weapon (host with Boom & Jang Su-won) (2014–2015) Hitmaker (with Jeong Hyeong-don) (2014–2015) I Live Alone (2013–2014) Duet Song Festival (2016–2017) Idol Room (with Jeong Hyeong-don) (2018–2020) (2019) (2020–present) Shutdown Fairy (2021) I'm SOLO (2021-present) Chosun Panstar (2021) Capitalism School (2022) Accapella (2022) (2022-present) / Spin-off Star Birth (2022); Star maker Filthy Village (2022) - Host My Name is Gabriel - Panelist Delicious Guys (2023–present) - Cast Member Good Day (2025)

Television series A Poem a Day as Kim Dae-bang (2018) Hit the Top as Special Appearance (2017) The Wind Blows Where You Wish as Yang Goo-byeong (2015) Mom Is Acting Up as Special Appearance (2012)

Films Romantic Movement in Seoul (2010) The Beat Goes On (2010)

Awards + Year presented, name of the award ceremony, award category, nominated work and the result of the nomination Year Awards show Category Nominated work Result 2013 MBC Entertainment Awards Popularity Award – Variety Shows I Live Alone 2014 KBS Entertainment Awards Excellence Award in a Variety Show – Male Happy Sunday: 2 Days & 1 Night 2018 KBS Entertainment Awards Top Excellence Award in a Variety Show – Male Happy Sunday: 2 Days & 1 Night

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Important facts

Birth century
Nationality
Education
Jeonju University

People in Defconn's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Defconn's

Frequently asked questions

Who is Defconn?

South Korean hip hop singer and occasional comedic television presenter

When was Defconn born?

Defconn was born on 6 January 1977 in Jeonju.

What is Defconn's occupation?

Defconn is a singer, composer, songwriter and comedian.

What nationality is Defconn?

Defconn is South Korean.

Sources & further reading

· Wikipedia: Defconn

· Wikidata: Q5251098

· DBpedia: Defconn

Cite this page

APA: Biography.guide. (2026). Defconn. https://biography.guide/defconn/

MLA: "Defconn." Biography.guide, https://biography.guide/defconn/.

Chicago: "Defconn." Biography.guide. https://biography.guide/defconn/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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