Singer Seo In-young will take the stage at 'Waterbomb Sokcho 2026' to prove the majesty of the 'original summer queen.' According to her agency SW Entertainment, Seo In-young will join the lineup of 'Waterbomb Sokcho 2026,' scheduled to be held on August 22 at Hanwha Resort Seorak Sorano, to meet with fans. 'Waterbomb,' a representative summer festival combining water and music, continues to enjoy explosive popularity every year with its spectacular performances and vibrant atmosphere. In particular, the news of Seo In-young's appearance, who possesses unrivaled stage presence, has further heightened anticipation for this festival. Ahead of this performance, Seo In-young is drawing attention by teasing a successful diet. She recently announced her comeback through her personal YouTube channel and has been focusing on weight loss. Previously told by the production team that it was 'not Waterbomb but belly fat bomb,' Seo In-young revealed her strong determination to diet, saying, 'I will definitely lose it. Just watch.' This upcoming stage, where her continued efforts will come to fruition, holds an even more special meaning for her. An agency official said, 'Seo In-young is preparing the best stage that she can enjoy together with the audience,' adding, 'Her effort and passion shown on YouTube will be revealed on this Waterbomb Sokcho stage.' Seo In-young, who has garnered public attention with new transformations and outstanding vocal skills at every performance, is drawing intense public interest for the 'Waterbomb Sokcho' performance she will deliver after thorough self-management.