BTOB's Minhyuk became an instant trending topic after his performance at 2026 WATERBOMB Seoul on July 24. The 35-year-old idol took the stage without a shirt, immediately catching fans' attention with his physique.

WATERBOMB, one of summer's most popular concert series, features K-Pop idols and entertainers performing while water continuously pelts them and the crowd. Minhyuk, a returning performer at the festival, seemingly decided to lean into the water theme by ditching the typical concert attire.

Highly detailed fancams of his performance quickly circulated online, with one clip racking up over 500,000 views. In the footage, Minhyuk delivers powerful dance moves while water streams down—and fans couldn't help but react to every flexed muscle.

Twitter exploded with reactions ranging from humor to genuine admiration. While some joked about the situation (one user quipped "put ur bra back on"), others showered the idol with compliments about his visuals and obvious dedication to fitness. The lighthearted roasting proved that Minhyuk's shirtless appearance was exactly the kind of viral moment WATERBOMB delivers year after year.

Minhyuk's appearance at the festival isn't his first time grabbing headlines. The idol has built a reputation for viral moments throughout his career, and it seems age hasn't slowed down his ability to dominate social media. At 35, he's proving that dedication to health and performance chops keeps the spotlight firmly on him.

The 2026 WATERBOMB Seoul lineup features multiple returning performers alongside Minhyuk, making it clear the festival remains a can't-miss summer event for K-Pop fans. Whether attendees showed up for the music or the water-soaked visuals, one thing's certain: Minhyuk ensured his stage time would be remembered.