2025 in Japanese music

Debuts

Debuting groups

• Hana
• ZOCX

Returning from hiatus

Returning groups

• Mameshiba no Taigun

Number-ones

• Oricon number-one albums
• Oricon number-one singles
• Billboard Japan number-one albums
• Billboard Japan Hot 100 number-one singles

Disbanding and retiring artists

Disbanding

• Bis
• Dempagumi.inc
• FlowBack
• Kankaku Pierrot
• KAT-TUN
• The Pillows
• Tokio

Going on hiatus

• Mameshiba no Taigun Tonai Bousho a.k.a. MonsterIdol
• Perfume