BE:FIRST 4th Single『Mainstream』発売詳細 【LIVE盤】Mainstream (CD+Blu-ray)
発売日：
🔖収録内容
[ CD ]
1. Mainstream
2. SOS
3. Grow Up
[ Blu-ray ]
LIVE -D.U.N.K. Showcase in Makuhari Messe International Exhibition Hall-
1. BF is…
2. Boom Boom Back
3. Message
4. Bye-Good-Bye
5. Smile Again
6. Milli-Billi
7. Move On
8. Gifted.