LIGHTSUM Reveals Title Track Ahead of Japanese Debut Mini-Album “Re:Idol”

K-pop girl group LIGHTSUM is embarking on an exciting new chapter in their music career by kicking off official preparations for their upcoming Japanese debut. On September 9, news broke regarding their pre-release schedule, confirming that the group will drop the main title track of their debut Japanese mini-album ahead of the full physical record launch. According to the official timeline, the lead single will land across major digital streaming platforms on September 16, serving as an early preview before…