ken hirai

Plus One 

Brand New Bike 

Highway Merry-Go-Round- 

Grotesque (feat. Amuro Namie) 

Onnaji Samishisa ~おんなじさみしさ~ 

Virtual Insanity (Jamiroquai cover) 

LIFE is... ~another story~ 

Mahoutte Itte Ii Kana? ~魔法って言っていいかな?~ 

Woman 

Kokuhaku 

Tomorrow 

Unchained Melody 

Sore Demo Shitai ~ソレデモシタイ~ 

Ken Hirai - Grotesque 

Ken Hirai - Morai Naki 

Life Is... 

Kimi wa Tomodachi ~鍵穴~ 

Heart Of Mine (Bobby Coldwell cover) 

Ite mo tatte mo ~いてもたっても~ 

Shiroi Koibitotachi 

What a wounderful world 

KIKYOGAOKA 

Ost.I Give My First Love to You - Boku wa Kimi ni Koi wo Suru 

Elegy ~less vocal~ 

Boku ga Donna ni Kimi wo Sukika, Kimi wa Shiranai (Kusunose Seishiro cover) 

Moon River 

Boku no Kokoro wo Tsukutte yo 

Aishiteru -less vocal- 

ABC (The Jacksons 5 cover) 

Ojii san no tokei 

Nonfiction (less vocal) 

愛してる 

Fake Star 

Grotesque feat. Namie Amuro (グロテスク) 

Boku wa Kimi ni Koi wo Suru 

Strawberry Sex 

Pop Star 

Kokuhaku -less vocal- 

Junko ~順子~ (Nagabuchi Tsuyoshi cover) 

HOTEL VAMPIRE 

signal 

Stay With Me 

Kokuhaku (OST Трагедия W)  

Non Fiction 

Boku wa Kimi ni Koi wo Suru (rei harakami remix) 

air cameraman 

Kimi no Kodou wa Kimi ni Shika Narasenai 

Taiyou 

Elegy 

POPSTAR