Songs

• cry and smile
• egao
• Grotesque (グロテスク)
• OST Boku no hatsukoi wo kimi ni sasagu
• 瞳をとじて

Ken Hirai

Other Musicians

• Camila
• Jessie J
• Ne-Yo
• Anitta
• Ailee
• Frank Reyes
• Volkan Konak
• Armin Zarei (2AFM)
• Sofi Tukker
• Natalia Kills