Những bài hát của ca sỹ "Ken Hirai"
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Even If - Instrumental
Ken Hirai
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Twenty! Twenty! Twenty!
Ken Hirai
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White: Boku ni Aitai
Ken Hirai
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DESPERADO
Ken Hirai
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Futarino Meiro
Ken Hirai
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Strawberry Sex ~Sweet Mix~
Ken Hirai
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Soredemo Corpse (tofubeats remix)
Ken Hirai
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Stardust
Ken Hirai
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LIFE is...
Ken Hirai
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ドシャブリ/ Doshaburi (Downpour)
Ken Hirai
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言わない関係 (Iwanai Kankei)
Ken Hirai
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横顔/ Yokogao (Face in Profile)
Ken Hirai
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Kataho Zutsuno Earphone
Ken Hirai
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Candy (Less Vocal)
Ken Hirai
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Plus One
Ken Hirai
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かくれんぼ (Kakurenbo)
Ken Hirai
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Affair
Ken Hirai
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瞳をとじて (Hitomi wo Tojite) (Less Vocal)
Ken Hirai
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フルサ・サイーダ (Furusa Saiida )
Ken Hirai
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Strawberry Sex
Ken Hirai
