Canzoni

• 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

Altri artisti

• Johnny Cash
• Austin Mahone
• Mohammed Assaf
• Faramarz Aslani
• Gianluca Grignani
• Fito & Fitipaldis
• Hannes Wader
• Goo Goo Dolls
• Yuri Mrakadi
• Julión Álvarez