Seo In-young performs at Waterbomb Sokcho after 15kg weight loss

Singer Seo In-young delivered a successful performance at ‘Waterbomb Sokcho 2026’ on July 22, marking a significant moment in her recent career resurgence. The former Jewelry member performed hits such as ‘Cinderella’ and ‘Thank You’ alongside a dance team led by Aiki.

To prepare for the stage, Seo revealed she underwent a rigorous transformation, including losing 15kg to reach a weight of 46kg. Her preparation involved a diet centered on eggs and protein, as well as cutting out late-night snacks and carbohydrates for several months. She also shared that she underwent arm liposuction to refine her physique after finding that certain areas were resistant to diet alone.

This comeback follows a period of public reconciliation through her YouTube channel, ‘Gaegwacheonseon Seo In-young,’ where she addressed past controversies and shared personal life updates. Her recent stage presence has been met with positive reception from fans who noted both her vocal stability and her visible dedication to her performance.