SEVENTEEN is charging into their 10th anniversary era with fierce energy and a fearless new concept. On May 23, the group unveiled the official MV teaser for "THUNDER", the title track from their upcoming 5th full-length album 'HAPPY BURSTDAY'—and it's a powerful preview of self-transformation.

⚡ Blitz Club: Where the Brave Are Reborn

The teaser paints a bold narrative: SEVENTEEN embraces their inner "daredevil" selves through self-reinvention. They arrive at the exclusive "Blitz Club", a secret haven for those who've dared to face fear and emerge renewed. There, they celebrate with others who've completed their own transformation journeys—sharing a toast to courage and rebirth.

The cinematic atmosphere and symbolic imagery point to a deeper theme: confronting limits, rewriting identities, and being reborn as lightning strikes.

🎧 'THUNDER'—Addictive Dance-Pop with an EDM Core

The track itself is described as an EDM-based dance-pop song packed with high-intensity beats and explosive hooks. It embodies SEVENTEEN's refusal to settle, even in their 10th year—reaffirming their commitment to evolve and push musical boundaries.

🎉 More Surprises Ahead: Teaser + B-Day Party at Jamsugyo

SEVENTEEN plans to drop an additional teaser for THUNDER later today. On May 25, they'll host their 'B-DAY PARTY: BURST STAGE @ Jamsugyo', transforming Seoul's Jamsugyo Bridge into a celebration space open to all fans.

📀 New Album Drops May 26 at 6PM (KST)

HAPPY BURSTDAY will be released across major streaming platforms on May 26, and it's already being hailed as one of the most thrilling comebacks of the year.

[Photo Credit: PLEDIS Entertainment]