Month in K-Pop: Four K-Pop Girl Groups Are Dropping Albums — AESPA, BABYMONSTER, LESSERAFIM, NMIXX
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May 2026 Is the Month K-Pop Fans Have Been Waiting For
Four major girl groups. Four albums. One month. BABYMONSTER, LE SSERAFIM, NMIXX, and aespa are all making their comeback in May 2026, turning this spring into one of the most stacked periods in recent K-pop history. If you follow any of these groups, you already know the stakes. If you are new to K-pop and wondering where to start, this is the month to jump in.
BABYMONSTER: CHOOM Drops May 4
BABYMONSTER opens the month with their third mini album CHOOM (춤), releasing May 4 at 6 PM KST. The title is the Korean word for "dance," and everything about this comeback points toward a performance-focused, high-energy concept. YG Entertainment described the project as something with "a slight edge and coolness" that fans have not heard from the group before. After building their reputation on raw, hip-hop-driven energy through albums like DRIP and WE GO UP, CHOOM signals a deliberate shift toward something sharper and more refined. One notable absence is main vocalist Rami, who has been on a health-related hiatus since May 2025 and did not participate in the album's recording. Fans have been vocal about hoping for her return, but for now the group moves forward as six. Immediately after this comeback, BABYMONSTER heads into their second world tour spanning five continents, making CHOOM the launchpad for the most ambitious phase of their career so far.
NMIXX: Heavy Serenade Drops May 11
One week later, NMIXX arrives with their fifth mini album Heavy Serenade on May 11 at 6 PM KST. The group pre-released a track called "Crescendo" on April 28, giving fans an early preview before the full album lands. NMIXX built their reputation on "MIXX POP," a signature approach that blends contrasting genres and shifts tempo within a single song. This format is unconventional by K-pop standards and has divided casual listeners while winning deep loyalty from fans who appreciate the ambition. Their 2025 studio album Blue Valentine marked a career high, earning 10 music show wins and strong reviews from outlets including Billboard and NME. Heavy Serenade follows that momentum, with trailer visuals described as dreamlike and emotionally driven rather than the high-octane performance spectacle NMIXX is also capable of delivering.
LE SSERAFIM: PUREFLOW pt.1 Drops May 22
LE SSERAFIM announced their second studio album PUREFLOW pt.1 with a teaser that immediately turned heads. The message read: "FOR WE ARE NOT FEARLESS, AND THEREFORE POWERFUL." For a group whose entire identity has been built around the tagline "I'm fearless," this is a striking reframe. The concept now leans into vulnerability as a source of strength rather than confidence as a default state. Their lead single "CELEBRATION" was pre-released on April 24, giving the comeback an early foothold before the full album arrives May 22. LE SSERAFIM has performed at Coachella, appeared on Dick Clark's New Year's Rockin' Eve in Times Square, and landed multiple times on the Billboard 200 since their 2022 debut. PUREFLOW pt.1 comes at a moment when fourth-generation girl groups are competing for the same attention, and choosing to evolve their own narrative rather than repeat it is a bold move.
aespa: LEMONADE Drops May 29
aespa closes the month with their second full-length album LEMONADE on May 29 at 1 PM KST. The album contains 10 tracks and is their first full-length release in two years, following 2024's Armageddon. That album topped the iTunes Top Albums chart in 25 regions and set aespa on a global trajectory that has not slowed down. In 2025, the group earned Billboard Women in Music Group of the Year and received an American Music Award nomination. LEMONADE is shaping up as the biggest statement of their career so far, with an intro film called "INTRO — P.O.S: Singularity" already hinting at an expanded version of their universe-driven concept. aespa has maintained five consecutive million-selling albums. LEMONADE is their shot at a sixth, a milestone no K-pop girl group has achieved consecutively. The album release is followed by a new world tour covering multiple continents through 2026 and into 2027.
One Month, Four Groups, No Breaks
BABYMONSTER on May 4. NMIXX on May 11. LE SSERAFIM on May 22. aespa on May 29. Each of these groups represents a different corner of the fourth-generation girl group landscape. BABYMONSTER brings raw performance energy. NMIXX brings genre-bending ambition. LE SSERAFIM brings refined concept storytelling. aespa brings a universe that has been expanding since 2020. May 2026 is not a month to scroll past.