Kim Sung-kyu
South Korean singer
Kim Sung-kyu (Korean: 김성규; Hanja: 金聖圭; born April 28, 1989), referred to as Sunggyu or Sungkyu, is a South Korean singer-songwriter and actor. He is the leader and main vocalist of South Korean boy band Infinite.
In November 2012, Kim began his solo career with his first extended play, Another Me, which debuted at number one on the Gaon Album Chart. His second extended play, 27 (2015), debuted at number one on the Gaon Album Chart and number eight on the US Billboard World Albums chart, and yielded two South Korean top-ten singles "The Answer" and "Kontrol".
Early life
Kim Sung-kyu was born on April 28, 1989 in Jeonju, South Korea. He attended Jeonju National University High School and was in the school rock band called "Coma Beat". When Kim first told his parents about his dream to become a singer, they rejected it because they wanted him to have a normal life and told him they'd rather he leave the house instead. He continued to practice in secret and came to Seoul alone to pursue his dreams after graduating from high school.
In 2007, he auditioned for SM Entertainment but failed to make the cut, and auditioned once more in 2008 only to fail again. Due to his admiration for rock band Nell, he initially auditioned at Woollim Entertainment under the recommendation of Nell's manager whom he'd met coincidentally at the café where he worked at part-time.
This brief starts where responsible research should: with the source description of “Kim Sung-kyu” as south Korean singer. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the people & ideas register because the source frames it as south Korean singer. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q6409458. VIAF identifies the subject as 6661156565731123500000. 1 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1989, 2012, 2015 and 2007.
A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.
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Three-step research path
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Questions for further research
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This entry incorporates text from “Kim Sung-kyu” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.