JAKOPS, known professionally as SIMON and recognized as the producer behind popular girl group XG, was arrested in Japan on drug possession charges.

The producer, whose real name has not been disclosed, previously performed as a member of boy group Dalmatian (later known as DMTN) before transitioning to production work. He gained significant recognition in recent years as the creative force behind XG, the Japanese girl group that has garnered international attention with hits like "Mascara" and "Shooting Star."

Details about the specific charges and circumstances surrounding the arrest remain limited. Japanese authorities have not released additional information about the case or potential penalties.

XG debuted in 2022 under XGALX, with JAKOPS serving as their main producer and creative director. The group consists of seven Japanese members: JURIN, CHISA, HINATA, HARVEY, JURIA, MAYA, and COCONA. They've built a strong following both domestically and internationally, particularly in Southeast Asia and North America.

The arrest raises immediate questions about XG's upcoming activities and releases. The group recently completed successful tours and has been active with music releases throughout 2025. XGALX has not yet issued an official statement regarding the situation or how it might affect the group's planned activities.

JAKOPS' dual background as both a former K-pop performer and current producer made him a notable figure in the industry. His experience as a Dalmatian member, combined with his production skills, helped shape XG's unique sound that blends hip-hop, R&B, and pop elements.

Fans have expressed concern on social media about both JAKOPS' wellbeing and XG's future projects. The situation highlights ongoing issues within the entertainment industry regarding substance abuse and the pressures faced by industry professionals.

The case remains under investigation by Japanese authorities. Neither XGALX nor representatives for JAKOPS have provided additional comments beyond confirming the arrest.