PLAVE, a virtual idol group, has unveiled 'Heung Heung Heung (feat. SOLE)' as a pre-release track from their fourth mini album 'Caligo Pt.2' following the successful completion of a fan-participated event. The fan engagement event, which began on the 28th of last month, invited fans to act as 'secret agents' in a mini-game to collect 'star shards,' with rewards unlocked upon reaching target scores. The explosive fan participation resulted in achieving the goal score on the 1st afternoon, triggering the song's surprise release. The revealed track features sensory sounds and a bright, lovely mood that contrasts with PLAVE's previously weightier concept, while maintaining their distinctive world view with new musical attempts. The official release is scheduled for the 3rd at 6 PM across various music platforms, with the full digital soundtrack releasing on the 13th. This promotion goes beyond simple content release, as fans directly participated in creating the results, strengthening the organic connection between PLAVE's universe and their fanbase. The comeback momentum continues offline with a pop-up store opening at The Hyundai Seoul Sounds Forest in Yeongdeungpo-gu from the 8th to 19th, featuring space design reflecting the album concept.