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Jang Ki-ha, Soyeon, Cho Hyun-ah, and Ko Young-bae line up for KBS '더 시즌즈' on Sept. 18·BOYNEXTDOOR adds Hong Kong date as 'KNOCK ON Vol.2' world tour sells out across all cities·Hearts2Hearts and LIGHTSUM target Japan: debut single out, ABEMA documentary underway·Actor Ha Do-gwon drops second single 'On This Road' Sept. 21 with band PLUZ on instruments·ATEEZ's Hongjoong and Bazzi drop collaboration single 'ENOuGH'·Lisa to debut 'SaWaDiKa' live at 2026 MTV VMAs, sets K-pop solo nomination record with 'Dream'·REI AMI drops '2LOUD' as HUNTR/X's Zoey steps into a solo chapter·Kim Dong-hyun's wife warned she can't give birth again after fourth C-section: "Membrane was almost on the verge of tearing"·소란's Ko Young-bae drops mini-album 'Layer' as a one-man band·RESCENE confirms November 3 album release, their first new original music in 7 months·Jang Ki-ha, Soyeon, Cho Hyun-ah, and Ko Young-bae line up for KBS '더 시즌즈' on Sept. 18·BOYNEXTDOOR adds Hong Kong date as 'KNOCK ON Vol.2' world tour sells out across all cities·Hearts2Hearts and LIGHTSUM target Japan: debut single out, ABEMA documentary underway·Actor Ha Do-gwon drops second single 'On This Road' Sept. 21 with band PLUZ on instruments·ATEEZ's Hongjoong and Bazzi drop collaboration single 'ENOuGH'·Lisa to debut 'SaWaDiKa' live at 2026 MTV VMAs, sets K-pop solo nomination record with 'Dream'·REI AMI drops '2LOUD' as HUNTR/X's Zoey steps into a solo chapter·Kim Dong-hyun's wife warned she can't give birth again after fourth C-section: "Membrane was almost on the verge of tearing"·소란's Ko Young-bae drops mini-album 'Layer' as a one-man band·RESCENE confirms November 3 album release, their first new original music in 7 months·

Hearts2Hearts and LIGHTSUM target Japan: debut single out, ABEMA documentary underway

Hearts2Hearts debuted in Japan last month with 'ICONIC HEART', a 3-track single. LIGHTSUM is releasing debut doc 'Re' on ABEMA after a 2-year hiatus.

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By Newsdesk··1 min read181
Hearts2Hearts and LIGHTSUM target Japan: debut single out, ABEMA documentary underway

Hearts2Hearts goes Jersey Club for Japan

Hearts2Hearts made their Japanese debut last month with the single ICONIC HEART. The title track is a Jersey Club-based dance song built around bright synths and bouncy beats — a deliberate swing at a sound that travels.

The single carries three tracks total: ICONIC HEART (title track), Lemon Tang (previously popular in Korea), and RUDE! (Japanese-language version). Packing two Korea-proven tracks alongside the new title is a straightforward localization play. Give the Japanese market something familiar while leading with something new.

LIGHTSUM's 2-year gap, now on camera

LIGHTSUM is taking a different route into Japan. Since last month, the group has been releasing a debut documentary called Re on the Japanese OTT platform ABEMA, documenting their preparation process ahead of a Japanese debut.

The members went through a 2-year hiatus before this push. Re puts that period on record—the documentary shows their unfiltered side as they work toward the debut. Two years off, then straight to a documentary rollout. Bold reintroduction strategy.

Both groups are moving on Japan simultaneously, with notably different entry points. One leads with music. The other leads with a behind-the-scenes narrative.

Edited by the KTRENZ newsroom.

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