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Headquarters  (https://en.yna.co.kr/aboutus/subscription) Subscription  (https://en.yna.co.kr/aboutus/copyright) Copyright        SEARCH () (Input Keyword) (EN) Text Delete  SEARCH   (https://en.yna.co.kr/search/index?query=IU&lang=EN) #IU  (https://en.yna.co.kr/search/index?query=digital+single&lang=EN) #digital single       (https://en.yna.co.kr/index) Yonhap News Agency  IU to drop self-penned digital single  Today's date   Today's weather  Seoul (https://en.yna.co.kr/weather/index) Full Forecast   구름조금 Partly Sunny 17.3℃  16° / 28°   Precip 0mm  Wind W 3.5m/s  Humidity 45%   CAI  Moderate 80  PM10 Good DSS Very Bad PM2.5 Bad O₃ Moderate     close    CAI Comprehensive Air-quality Index PM10 Particulate Matter Less than 10㎛ PM2.5 Particulate Matter Less than 2.5㎛ O₃ Ozone     Latest News  Pause  more   Close       (https://en.yna.co.kr/news) All News  (https://en.yna.co.kr/national/index) National (https://en.yna.co.kr/national/politics) Politics  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OK     IU to drop self-penned digital single (https://en.yna.co.kr/reporter/index?id=37313039303038) (Shim Sun-ah, 심선아)  Shim Sun-ah      (https://en.yna.co.kr/news) All News  10:12 September 10, 2026     This will let Google show Yonhap news articles that match or are related to your search     (https://www.google.com/preferences/source?q=en.yna.co.kr) (새창) Add Yonhap as a preferred source on Google   SHARE  Facebook  X  Pinterest  Linked in  Tumblr  Reddit  Facebook Messenger  Copy URL   URL is copied.  LIKE  SAVE  PRINT  FONT SIZE  (font-size01)  ABCDEFG   (font-size02)  ABCDEFG   (font-size03)  ABCDEFG   (font-size04)  ABCDEFG   (font-size05)  ABCDEFG         SEOUL, Sept. 10 (Yonhap) -- Singer-actress IU is set to release a new digital single Thursday, marking her first musical release in exactly a year. According to her agency, Edam Entertainment, "Unknown Planet" will drop at 6 p.m. across all major music streaming platforms. The single arrives one year after "Bye, Summer," her surprise digital single released Sept. 10, 2025. The new project features double lead tracks -- "Unknown Planet" and "Dear My Crazy Soulmate" -- both of which were written by IU herself. These songs are also slated to be included in her upcoming sixth studio album, a release that was previously delayed due to health concerns. The music video for "Dear My Crazy Soulmate" will be released alongside the single, with IU appearing as a police officer. Following that, the video for "Unknown Planet" is scheduled to debut at midnight Tuesday.  (This composite photo from Edam Entertainment shows scenes from the music video for singer-actress IU's "Dear My Crazy Soulmate." (PHOTO NOT FOR SALE) (Yonhap))    This composite photo from Edam Entertainment shows scenes from the music video for singer-actress IU's "Dear My Crazy Soulmate." 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