<sod>In March 2015, Key and [[CNBLUE]]'s [[Lee Jung-shin|Jung-shin]] were appointed as the main presenters of [[Mnet (TV channel)|Mnet's]] [[M Countdown|M! Countdown]].<ref>{{cite web|title=키 이정신 '엠카' 새 MC 전격발탁…특별무대 첫선|url=http://entertain.naver.com/read?oid=311&aid=0000450202|accessdate=19 March 2015}}</ref> The same year Key collaborated with AXODUS, a duo formed by Don Spike and DJ Hanmin. Key took over the vocals for the track "Hold On," and they made a special presentation on July 25, 2015 in Ansan Valley Rock Festival.<ref>{{cite web|url=http://news.chosun.com/site/data/html_dir/2015/08/07/2015080700593.html|title=돈 스파이크, 키와 함께한 'Hold on' 어쿠스틱 버전 영상 공개|publisher=Chosun|date=August 7, 2015|accessdate=August 23, 2015}}</ref> In July 2015, Key was announced to be part of the musical "[[In the Heights]]".<ref>{{cite web|url=http://stoo.asiae.co.kr/news/naver_view.htm?idxno=2015070908432427178|title=첸 동우 성규 루나 키 등…뮤지컬 '인 더 하이츠' 캐스팅 [스포츠투데이]|publisher=Asiae News|date=July 9, 2015|accessdate=August 23, 2015}}</ref> Key made his theatrical debut as Byeong Gu in "Save the Green Planet!", based on the 2003 film of the same name.<ref>[http://www.koreatimes.co.kr/www/news/people/2016/03/178_199911.html "SHINee's Key takes starring role in play"] ''The Korea Times''. March 8, 2016.</ref> Key also had his own show entitled "Key's Know How" produced by Mnet.<ref name="kpopherald.koreaherald.com">{{cite web|title=Key to star in his own reality TV show |url=http://kpopherald.koreaherald.com/view.php?ud=201506221648046209866_2|accessdate=22 June 2015}}</ref> Key made his official acting debut in the [[TVN (South Korea)|tvN]] drama ''[[Drinking Solo]]'' which is premiering in September. He takes the role of a student who has been studying for the civil service exam for 3 years. His character has lived an easy life so far but he's currently experiencing a life with no income.<ref>{{cite web|url=http://entertain.naver.com/read?oid=109&aid=0003334594|title= [단독] 샤이니 키, tvN '혼술남녀' 출연…민호 잇는 '연기돌'|date=June 8, 2016|accessdate=July 9, 2016|work=Naver via Osen}}</ref><ref>{{cite web|url=http://news.chosun.com/site/data/html_dir/2016/07/14/2016071400687.html|title= '혼술남녀' 하석진-박하선, 꿀 케미 돋는 대본 리딩 공개|date=July 14, 2016|accessdate=July 17, 2016|work=Chosun}}</ref> Even though this was Key's first time acting in a network, he nevertheless got praised by the production team,<ref>{{cite web|url=http://entertain.naver.com/read?oid=213&aid=0000912232|title= ‘혼술남녀’ PD “키, 신선한 매력 캐스팅…노력형 배우”[인터뷰]|date= October 1, 2016|accessdate= October 2, 2016}}</ref> stating: {{cquote|''Key is someone who works hard. He prepared a lot beforehand... and as an actor, he comprehensively analysed his character role. He is receiving many praise and love from the staff members. Despite having no experience in dramas at the time of his audition, his acting gave off a very fresh vibe. Furthermore, his acting and his enunciation were good and so we decided to cast him.}}<eod>
<sod>In March 2015, Key and [[CNBLUE]]'s [[Lee Jung-shin|Jung-shin]] were appointed as the main presenters of [[Mnet (TV channel)|Mnet's]] [[M Countdown|M! Countdown]].<ref>{{cite web|title=키 이정신 '엠카' 새 MC 전격발탁…특별무대 첫선|url=http://entertain.naver.com/read?oid=311&aid=0000450202|accessdate=19 March 2015}}</ref> The same year Key collaborated with AXODUS, a duo formed by Don Spike and DJ Hanmin. Key took over the vocals for the track "Hold On," and they made a special presentation on July 25, 2015 in Ansan Valley Rock Festival.<ref>{{cite web|url=http://news.chosun.com/site/data/html_dir/2015/08/07/2015080700593.html|title=돈 스파이크, 키와 함께한 'Hold on' 어쿠스틱 버전 영상 공개|publisher=Chosun|date=August 7, 2015|accessdate=August 23, 2015}}</ref> In July 2015, Key was announced to be part of the musical "[[In the Heights]]".<ref>{{cite web|url=http://stoo.asiae.co.kr/news/naver_view.htm?idxno=2015070908432427178|title=첸 동우 성규 루나 키 등…뮤지컬 '인 더 하이츠' 캐스팅 [스포츠투데이]|publisher=Asiae News|date=July 9, 2015|accessdate=August 23, 2015}}</ref> Key made his theatrical debut as Byeong Gu in "Save the Green Planet!", based on the 2003 film of the same name.<ref>[http://www.koreatimes.co.kr/www/news/people/2016/03/178_199911.html "SHINee's Key takes starring role in play"] ''The Korea Times''. March 8, 2016.</ref> Key also had his own show entitled "Key's Know How" produced by Mnet.<ref name="kpopherald.koreaherald.com">{{cite web|title=Key to star in his own reality TV show |url=http://kpopherald.koreaherald.com/view.php?ud=201506221648046209866_2|accessdate=22 June 2015}}</ref> Key made his official acting debut in the [[TVN (South Korea)|tvN]] drama ''[[Drinking Solo]]'' which is premiering in September. He takes the role of a student who has been studying for the civil service exam for 3 years. His character has lived an easy life so far but he's currently experiencing a life with no income.<ref>{{cite web|url=http://entertain.naver.com/read?oid=109&aid=0003334594|title= [단독] 샤이니 키, tvN '혼술남녀' 출연…민호 잇는 '연기돌'|date=June 8, 2016|accessdate=July 9, 2016|work=Naver via Osen}}</ref><ref>{{cite web|url=http://news.chosun.com/site/data/html_dir/2016/07/14/2016071400687.html|title= '혼술남녀' 하석진-박하선, 꿀 케미 돋는 대본 리딩 공개|date=July 14, 2016|accessdate=July 17, 2016|work=Chosun}}</ref> Even though this was Key's first time acting in a network, his acting was well received by the production team,<ref>{{cite web|url=http://entertain.naver.com/read?oid=213&aid=0000912232|title= ‘혼술남녀’ PD “키, 신선한 매력 캐스팅…노력형 배우”[인터뷰]|date= October 1, 2016|accessdate= October 2, 2016}}</ref> stating: {{cquote|''Key is someone who works hard. He prepared a lot beforehand... and as an actor, he comprehensively analysed his character role. He is receiving many praise and love from the staff members. Despite having no experience in dramas at the time of his audition, his acting gave off a very fresh vibe. Furthermore, his acting and his enunciation were good and so we decided to cast him.}}<eod>