Ken Hirai - Ookina Furudokei

Ken Hirai - Hitomi Wo Tojite

Ken Hirai - Boku Wa Kimi Ni Koi Wo Suru

Ken Hirai - Life Is… Another Story

Ken Hirai - Omoi Ga Kasanaru Sono Mae Ni...

Ken Hirai - Pain

Ken Hirai - Aishiteru

Ken Hirai - Even If

Ken Hirai - Futari No Meiro

Ken Hirai - Kiss Of Life

Ken Hirai - Miracles

Ken Hirai - Missing You - It Will Break My Heart

Ken Hirai - Pop Star

Ken Hirai - #302

Ken Hirai - ABC

Ken Hirai - Affair

Ken Hirai - Aika ~Elegy~

Ken Hirai - Aoi Tori

Ken Hirai - Aozora

Ken Hirai - By My Melody

Ken Hirai - CANVAS

Ken Hirai - Come Back

Ken Hirai - Cry & Smile!!

Ken Hirai - Don´t Know Why

Ken Hirai - Doshaburi

Ken Hirai - Egao

Ken Hirai - Elegy

Ken Hirai - EREJI-

Ken Hirai - Ex-girlfriend

Ken Hirai - Faith

Ken Hirai - Fake Star

Ken Hirai - Gaining Through Losing

Ken Hirai - Grandfather's Clock

Ken Hirai - Grotesque

Ken Hirai - Hitomio Tojite

Ken Hirai - Hug

Ken Hirai - I'm So Drunk

Ken Hirai - Itoshiki Hibi Yo

Ken Hirai - Itsuka Hanareru Hi Ga Itemo

Ken Hirai - Jealousy

Ken Hirai - K.O.L

Ken Hirai - K.O.L.

Ken Hirai - Kaibutsu-san

Ken Hirai - Katahou-Zutsu No Iyafon

Ken Hirai - Kawaii No Yokai

Ken Hirai - Ken Hirai

Ken Hirai - Kikyougaoka

Ken Hirai - Kimi No Kodou Wa Kimi Ni Shika Narasenai

Ken Hirai - Kimi Wa Su.te.ki

Ken Hirai - Kimi wa Tomodachi

Ken Hirai - Kokuhaku

Ken Hirai - Kyanbasu

Ken Hirai - L'Amant

Ken Hirai - L'Amant (translation)

Ken Hirai - Ladynapper

Ken Hirai - LAKuEN

Ken Hirai - Love Love Love

Ken Hirai - Love Or Lust

Ken Hirai - Love Phantom

Ken Hirai - Mabataki

Ken Hirai - Mahoutte Itte Ii Kana?

Ken Hirai - Memories

Ken Hirai - Merii-Goo-Raundo Haiuei

Ken Hirai - Merry-Go-Round Highway

Ken Hirai - Missionary

Ken Hirai - Non-Fiction

Ken Hirai - Nostalgia

Ken Hirai - Omoi Ga Kasanaru Sono Mae Ni

Ken Hirai - On Air

Ken Hirai - Onnaji Samishisa

Ken Hirai - Paul

Ken Hirai - Plus One

Ken Hirai - Precious Junk

Ken Hirai - Rakuen

Ken Hirai - Revolver

Ken Hirai - Ring

Ken Hirai - Sayounara My Love

Ken Hirai - Seishun Days

Ken Hirai - Sekai De Ichiban Kimi Ga Suki?

Ken Hirai - Sentimental

Ken Hirai - Shashin

Ken Hirai - She Is!

Ken Hirai - Somebody's Girl

Ken Hirai - Sorede Iina

Ken Hirai - Soredemo Shitai

Ken Hirai - Star

Ken Hirai - Strawberry Sex

Ken Hirai - Style

Ken Hirai - Sweet Pillow

Ken Hirai - Taboo

Ken Hirai - The Flower Is You

Ken Hirai - Time

Ken Hirai - Tstuyoku Naritai

Ken Hirai - Tug Of War

Ken Hirai - Twenty! Twenty! Twenty!

Ken Hirai - Unfit In Love

Ken Hirai - UPSET

Ken Hirai - Utsukushii Hito

Ken Hirai - Waaruzu Endo

Ken Hirai - What's Goin' On?

Ken Hirai - Why

Ken Hirai - Wonderful World

Ken Hirai - Yokogao

Ken Hirai - You Are The Sunshine Of My Life

Ken Hirai - Yume no mukou de