IU has resumed public appearances after a health-related hiatus, including presenting at an event and making a surprise return with a teaser for a new digital single. She is also facing legal action in the U.S. over online defamation, while her upcoming 2026 concerts and sixth album have been postponed due to health concerns. Meanwhile, IU continues to expand her presence in film and advertising, having confirmed a concert film release and a reunion with Heo Nam Jun for a music video.