这张单曲是组合在休整约一年之后发表的第一首单曲,也是组合2011年发行的第一张单曲。主打歌《Why? (Keep Your Head Down)》、关西电视台与富士电视台制作的电视剧《美丽邻人》的主题歌[参5]。这张单曲收录的两首歌曲《Why? (Keep Your Head Down)》与《MAXIMUM》都是组合在韩国发行的专辑《Keep Your Head Down》收录的歌曲(《왜 (Keep Your Head Down)》与《MAXIMUM》)的日语版本。
单曲分为“CD+DVD”“只CD”两种版本发行,前者有收录主打歌《Why? (Keep Your Head Down)》的MV与MV的拍摄过程(只在初回限定盘中收录)。初回限定版本封入特典是封面大小的卡片(6种中随机封入1种)。“只CD”版本有12页豪华手册同捆封入。
收录歌曲
CD
《Why? (Keep Your Head Down)》 [4:01]
作词:Yoo Young Jin、日本语词:Luna、作曲:Yoo Han Jin, Yoo Young Jin、编曲:Yoo Han Jin
TRI-ANGLE(2004) · RISING SUN(2005) · "O"-正.反.合.(2006) · MIROTIC(2008) · 왜(Keep Your Head Down) / 이것만은 알고가 (Keep Your Head Down)(2011) ·CATCH ME / HUMANOIDS(2012) ·TENSE(2014) ·RISE AS GOD(2015) · New Chapter #1 : The Chance of Love(2018)
The 1st LIVE CONCERT "RISING SUN" - The 2nd ASIA TOUR CONCERT "O" - The 3rd ASIA TOUR CONCERT "MIROTIC" in SEOUL - The 4th WORLD TOUR "CATCH ME" in SEOUL
日本
TOHOSHINKI LIVE CD COLLECTION ~Heart, Mind and Soul~ - TOHOSHINKI LIVE CD COLLECTION ~Five in the Black~ - TOHOSHINKI LIVE CD COLLECTION ~T~ - TOHOSHINKI LIVE CD COLLECTION ~The Secret Code~ FINAL in TOKYO DOME
1st LIVE TOUR 2006 ~Heart, Mind and Soul~ - 2nd LIVE TOUR 2007 ~Five in the Black~ - 3rd LIVE TOUR 2008 ~T~ - 4th LIVE TOUR 2009 ~The Secret Code~ FINAL in TOKYO DOME - TOHOSHINKI VIDEO CLIP COLLECTION -THE ONE- - TOHOSHINKI LIVE TOUR 2012 ~TONE~ - TOHOSHINKI LIVE TOUR 2013 ~TIME~ - TOHOSHINKI LIVE TOUR 2013 ~TIME~ FINAL in NISSAN STADIUM - TOHOSHINKI LIVE TOUR 2014 ~TREE~