變更

2011年，他參加韓國電視台[[SBS (韓國)|SBS]]選秀節目《K-POP STAR》第一季，最終獲得第四名<ref>{{cite news|url=http://www.soompi.com/2012/04/16/lee-seung-hoon-says-goodbye-in-tears-onkpop-star/#.U6jEbBZh4ds|title=YG Tears Up as Lee Seung Hoon Says Goodbye on "K-Pop Star"|date=2012-04-16|language=en}}</ref> ，之後[[YG娛樂]]宣布與李昇勳簽約，成為練習生。<ref>{{cite news|title=Lee Seung Hoon and Lee Ha Yi from SBS “K-Pop Star” Pick Management Agency|url=http://www.soompi.com/2012/05/16/lee-seung-hoon-and-lee-ha-yi-from-sbs-kpop-star-pick-management-agency/#.U6jE1RZh4ds|accessdate=2016-09-09|publisher=soompi|language=en}}</ref>