A crowded slate of K-pop girl group releases is set to define May, with BABYMONSTER, NMIXX, ITZY, LE SSERAFIM and aespa all returning within weeks of one another. Adding to the momentum is a long-awaited reunion by I.O.I, nearly a decade after its disbandment, setting up one of the most competitive release windows. YG Entertainment’s youngest act BABYMONSTER opens the month May 4 with its third mini-album, “CHOOM.” Positioned as an heir to the company’s girl group lineage that includes BLACKPINK and 2NE1, the group has similarly built global attention since debut through performance-focused releases. According to YG, the new album spans hip-hop, dance and R&B, with the lead track and B-sides “MOON,” “I LIKE IT” and “LOCKED IN” aimed at showcasing the group’s range. Girl group NMIXX under JYP Entertainment follows May 11 with its fifth mini-album, “Heavy Serenade.” The title track was reportedly co-written by singer-songwriter Hanroro, known for sentimental hits “0+0,” “1111” and “Let Me Love My Youth.” After debuting with its self-described “MIXX-pop” genre in 2022 to mixed r
