Pada 30 Mei 2013, Henry diumumkan menjadi artis solo laki-laki pertama S.M. Entertainment sejak 13 tahun,<ref name="language" /> setelah SM Entertainment mengungkapkan dua gambar misterius mengumumkan debut dari artis solo baru mereka pada 29 Mei 2013.<ref name="languange">{{cite news|url=http://enewsworld.interest.me/enews/contents.asp?idx=37301|title=SM Entertainment Announces Mystery Male Solo Artist|accessdate=May 31, 2013|author=Hong, Grace Danbi|newspaper=CJ E&M enewsWorld|date=May 29, 2013|archive-date=2013-06-15|archive-url=https://archive.today/20130615175713/http://enewsworld.interest.me/enews/contents.asp?idx=37301|dead-url=yes}}</ref> Pada 31 Mei 2013, teaser untuk video musik "Trap" dirilis oleh SM Entertainment, yang akan fitur anggota Super Junior-M [[Kyuhyun]] dan [[SHINee]] [[Lee Taemin|Taemin]].<ref>{{cite news|url=http://enewsworld.interest.me/enews/contents.asp?idx=37615|title=SM Releases Henry ‘Trap’ Teaser Feat. Super Junior’s Kyuhyun and SHINee’s Taemin|accessdate=May 31, 2013|author=Lee, Nancy|newspaper=CJ E&M enewsWorld|date=May 31, 2013|archive-date=2013-06-15|archive-url=https://archive.today/20130615175911/http://enewsworld.interest.me/enews/contents.asp?idx=37615|dead-url=yes}}</ref> Video musik dirilis pada 7 Juni bersamaan dengan perilisan album mini dengan judul sama.<ref>{{cite news|url=http://enewsworld.interest.me/enews/contents.asp?idx=38027|title =Super Junior-M′s Henry Has Got Us Trapped|accessdate=June 7, 2013|author=Eun, Elizabeth & Hong, Grace Danbi|newspaper=CJ E&M enewsWorld|date=June 7, 2013}}</ref>
Singel debut pada #28 di [[Gaon Chart|Gaon]] Daily Chart.<ref name="gaon">{{ko icon}} {{cite web|url=http://www.gaonchart.co.kr/main/section/search/list.gaon?Search_str=%EC%94%A8%EC%8A%A4%ED%83%80&x=36&y=9|title=Gaon Search - Henry|date=|work=|publisher=Gaon|accessdate=2013-07-07|language=}}</ref>
