Yuu appears (sings/talks) in the following CD singles.

2005 04.06	Happy Material (KICM-3096)	Song/Talk
2005 08.03	Happy Material (KICM-3111)	Song
2005 11.09	Itsudatte My Santa! Character Song 3 (YFCM-2703)	Song
2005 12.10	Seinaru Sorano Shitade (SCRF-00017)	Song
2006 11.08	1000% Spaking (KICM-3135)	Song
2007 03.21	Wheel of Fortune (GNCA-7915)	Song
2007 05.30	Sora no Kotoba (GNCA-7917)	Song
2007 08.17	Love Sensation (KICM-3151)	Song
2007 08.22	Hito toshite jiku ga bureteiru (KICM-3152)	Song
2007 09.26	Zessei Bijin (KICM-3153)	Song
2008 01.23	Fight or Flight (GFCA-69)	Song
2008 01.23	Kuusou Rumba (KICM-3162)	Song
2008 02.27	Marionette (KICM-3163)	Song
2008 11.05	Nisemono [Friends] (KICM-3175)	Song
2009 02.11	Hanaji (ZMCZ-4481)	Song
2009 02.11	Kimi ni Mune kyun (ZMCZ-4482)	Song
2009 07.23	Ringo Mogire Beam (KICM-3192)	Song
2009 08.26	Kurayami Shinchuu Soushi Souai (KICM-3194)	Song
2011 08.24	Sakura Kaze ni Yakusoku wo (KICM-3237)	Song