• Where Is She？ - Natsumi Kobayashi - 2015-04-01
• 思い出に変わっても - Natsumi Kobayashi - 2015-03-04
• Boyhood - Natsumi Kobayashi - 2015-03-04
• Kiss Kiss Dynamite - Natsumi Kobayashi - 2014-02-26
• You're my everything - Natsumi Kobayashi - 2014-02-12
• 3 2 1 - Natsumi Kobayashi - 2013-12-04
• Summer LUV - Natsumi Kobayashi - 2013-08-07
• Hero - Natsumi Kobayashi - 2013-07-24
• Password - Natsumi Kobayashi - 2013-06-26
• SMILE & TEARS - Natsumi Kobayashi - 2013-03-13
• White Wishes - Natsumi Kobayashi - 2012-12-12
• Happy Birthday To You - Natsumi Kobayashi - 2012-10-17
• Sherlock(Japanese ver.) - Natsumi Kobayashi - 2012-05-16
• Voice 〜acappella〜 - Natsumi Kobayashi・MIHIRO - 2012-01-11
• Always Love - Natsumi Kobayashi - 2011-12-07
• Stranger - Natsumi Kobayashi - 2011-12-07
• この星のどこかで - Natsumi Kobayashi - 2011-10-19
• Love Like Oxygen - NATSUMI KOBAYASHI - 2011-10-12
• Hello - NATSUMI KOBAYASHI - 2011-06-22
• Weekend - Natsumi Kobayashi・Adrian‘Zag'Zagoritis・Natalia Druytis・Gregory Fitzgerald・Univer - 2010-12-08
• What about - Natsumi Kobayashi・Anthony Anderson・Steve Smith・Hadley Forsythe・Sean Hosein・Dane - 2010-12-08
• Nyte Flyte - Natsumi Kobayashi - 2010-02-24
• LOVE MACHINE GUN - Natsumi Kobayashi - 2009-05-27
• Rock with you - Natsumi Kobayashi - 2008-07-09
• 恋花(koibana) - Natsumi Kobayashi - 2008-02-06
• SLOW & SNOW - Natsumi Kobayashi - 2007-10-17
• Don't Break My Heart - Natsumi Kobayashi - 2007-06-27
• Stay for Love - Natsumi Kobayashi - 2006-09-06
• Promise - Natsumi Kobayashi - 2005-08-03
• LOVE STORY - Natsumi Kobayashi - 2005-06-29
• SNOW BALLAD - Natsumi Kobayashi - 2004-11-17
• River's Edge - Natsumi Kobayashi - 2004-02-25
• Butterfly - NATSUMI KOBAYASHI・TAKE - 2004-01-07
• Lie - Natsumi Kobayashi - 2003-03-12
• 春が来るまでに - NATSUMI KOBAYASHI - 2002-11-27
• PUZZLE - Natsumi Kobayashi - 2002-08-28