The situation
AtHeart performed at the KFN Consolation Train event held at the Korea Military Academy, covering TWICE's "CHEER UP" along with their own songs "Butterfly Doors" and "Shut Up". The event took place on June 26, 2026. This performance is part of their recent string of gigs, including appearances at Simply K-Pop, Kyungbok University, and Suwon Science College.
What the internet did with it
- Netizens on Theqoo noted the group's energy and praised their cover of "CHEER UP", with one commenter saying — "their stage presence is really something, the way they owned that TWICE song was impressive".
- The setlist for the KFN Consolation Train event has been updated to reflect AtHeart's performance, which included a mix of their original songs and the TWICE cover.
- Some fans expressed disappointment that the exact timing of the performance is not yet listed, awaiting further updates to the setlist.

The open question
The exact timing of AtHeart's performance at the KFN Consolation Train event remains unconfirmed, leaving fans to await further updates to the setlist for more detailed information.
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