jp sonic loginOfficial Website for SUMMER SONIC 2025 held for 2 days, August 16th (Sat) and 17th (Sun), 2025! Tokyo Venue: ZOZO Marine Stadium & Makuhari Messe OsakaOfficial Website for SUMMER SONIC 2025 held for 2 days, August 16th (Sat) and 17th (Sun), 2025! Tokyo Venue: ZOZO Marine Stadium & Makuhari Messe Osaka