Five weeks. That's how long CORTIS has been sitting at the top of the Korean music charts with "REDRED" — and as of this Monday, there's no sign of that changing. Meanwhile, the chart landscape around them shifted significantly this week: aespa arrived with "LEMONADE," I.O.I's reunion track continues to hold on against all logic, and AKMU is quietly running one of the most impressive dual-song chart performances of the year.
Here's everything that matters from this week's Melon Top 10.
Table of Contents
- #1 — CORTIS "REDRED": Five Weeks at the Top
- #2 — ILLIT "It's Me": HYBE's Other Big Story
- #3 — I.O.I "Suddenly": The Reunion No One Saw Coming
- #4 & #7 — AKMU Holds Two Spots Simultaneously
- #5 — YENA "Catch Catch": The Long Runner
- #6 NEW — aespa "LEMONADE": The Week's Big Entry
- #8–#10 — Hearts2Hearts, HANRORO, WOODZ
- This Week's Takeaway
#1 — CORTIS "REDRED": Five Weeks at the Top
The CORTIS story keeps getting bigger every week, and at this point it deserves its own dedicated post.
For international fans who haven't caught up: CORTIS is a boy group under Big Hit Music — HYBE's flagship label, home of BTS — that debuted in August 2025. They are less than a year old as a group. "REDRED," the lead single from their second EP GreenGreen (released May 4, 2026), became the first song by a male idol group to top Melon's daily chart in ten years. The GreenGreen EP sold over 1 million copies on its release day. The song made Billboard's Global 200 and Global Excl. US charts simultaneously.
Five consecutive weeks at #1. Over 18.3 million Circle Chart points in a single tracking week. A 5-week music show chart monopoly that outpaced competition from established acts including BTS's own comeback material, AKMU, and NCT Wish.
The Dazed Digital headline from last month said it cleanly: "CORTIS are bringing punk to K-Pop: 'We don't give a damn.'" The energy in "REDRED" — aggressive, direct, sonically dense — is genuinely different from what K-pop's dominant acts have been doing. Gen Z listeners have responded to it specifically.
Big Hit Music has produced BTS. They have produced TXT. CORTIS is the third act in that building to look like a potential generational act.
#2 — ILLIT "It's Me": HYBE's Other Big Story
ILLIT's "It's Me" from the album MAMIHLAPINATAPAI (released May 5, 2026) has been holding firmly at #2 for weeks — the main thing stopping it from claiming #1 is that CORTIS exists.
The title MAMIHLAPINATAPAI is the Yaghan word for the feeling of looking at someone and both knowing something needs to happen but neither saying it first. That naming choice, for a K-pop girl group's album, is the kind of cultural reference that gets attention for its specificity.
ILLIT secured 16.6 million Circle Chart points in the week of May 24–30 — formidable numbers that would comfortably top most weeks. This week, they're still #2. CORTIS at #1 is the only reason that reads as anything other than dominant.
#3 — I.O.I "Suddenly": The Reunion No One Saw Coming
I.O.I "Suddenly" continues to chart, and at this point it's earning its own recognition as a phenomenon.
I.O.I (아이오아이) was a project girl group that existed from 2016 to 2017 — formed through Produce 101, the survival show that launched the "produce" format that shaped a generation of K-pop groups. Their original run was eleven months. They broke up. Members went separate ways to TWICE, Weki Meki, DIA, and solo careers. For years, reunion speculation was a recurring K-pop conversation topic that never materialized.
Then "Suddenly" happened. The reunion track is currently sitting at #3 on Korea's most competitive chart week of the year, competing against groups that have had years to build their fanbase infrastructure. 16.6 million Circle Chart points. For a group that technically hasn't existed in nearly a decade.
The nostalgia engine in Korean music fandom is extraordinary when it activates. "Suddenly" is the evidence.
#4 & #7 — AKMU Holds Two Spots Simultaneously
"Paradise of Rumors" (소문의 낙원) sits at #4. "Joy, Sorrow, A Beautiful Heart" holds at #7. Both are from Flowering (개화), their fourth studio album released April 7, 2026 — all tracks written solely by Lee Chan-hyuk.
"Paradise of Rumors" achieved a Circle Triple Crown earlier this month — topping the overall digital chart, digital download chart, and streaming chart simultaneously. It currently has 14.2 million Circle Chart points in its best week. For an album that dropped two months ago, maintaining this kind of dual-song chart presence against fresh competition is a testament to AKMU's particular status in Korean music: they're the rare act that transcends K-pop fandom and appeals to general listeners who don't follow the idol ecosystem.
Lee Chan-hyuk wrote every track on Flowering himself. In the current K-pop landscape where production is typically a large team effort, that level of sole authorship at this commercial scale is notable.
#5 — YENA "Catch Catch": The Long Runner
Yena's "Catch Catch" from the EP LOVE CATCHER (March 30, 2026) has now been charting for over ten weeks — an exceptional run for a solo artist competing against major group releases every week.
Choi Ye-na (최예나) is a former IZ*ONE member who has built a consistent solo career since the group disbanded in 2021. "Catch Catch" has accumulated 11.8 million Circle Chart points in its best week. Its longevity on the chart comes from the kind of broad listener appeal that keeps songs streaming long after the initial release push — melodically accessible, emotionally direct, the type of track that gets added to personal playlists rather than just riding fandom streaming.
Ten weeks of sustained charting in the current competitive environment is not nothing.
#6 NEW — aespa "LEMONADE": This Week's Big Entry
The biggest chart news this week is aespa's "LEMONADE" entering the top 10 from their second studio album LEMONADE.
aespa (에스파) — SM Entertainment's four-member girl group of Karina, Giselle, Winter, and NingNing — have been one of the defining acts of the current K-pop era. Their world tour SYNK: aeXIS is currently running. LEMONADE is their second full-length album, and its title track enters the Melon chart with immediate momentum.
The "LEMONADE" entry is the week's story to watch. First-week streaming patterns for major SM releases tend to be strong and then normalize over the following weeks. Whether aespa can sustain a top 10 position while CORTIS continues to hold #1 and ILLIT and I.O.I maintain their positions is the competitive tension that will define next week's chart.
#8–#10 — Hearts2Hearts, HANRORO, WOODZ
Hearts2Hearts "RUDE!" (released February 21, 2026) continues a remarkable long-chart run for SM Entertainment's new girl group. Over four months on the chart for a debut-era track is the kind of sustained performance that labels frame as evidence of genuine breakout potential rather than fandom-driven streaming spikes.
HANRORO "Landing in Love" from the EP Take-off (October 2025) is still charting from last year — the definition of a long-tail streaming hit that found its audience gradually rather than on release. Eleven million Circle Chart points in its best week. The group has a second song, "0+0," also charting in the extended top 15.
WOODZ "Drowning" (October 2024) is the oldest song currently in the top 10 — nearly eight months after release, still holding. Cho Seung-yeon's "Drowning" has become one of those songs that simply doesn't leave the chart regardless of what drops around it.
This Week's Takeaway
The chart this week tells a compressed version of the current K-pop moment: a rookie group (CORTIS) breaking the charts with a sound that feels genuinely different, a nostalgia story (I.O.I) defying every commercial expectation, a heritage duo (AKMU) demonstrating that songwriting craft outlasts trend cycles, and two major girl groups (ILLIT, aespa) competing for the same listener attention.
CORTIS at week five of #1. aespa just arriving. Next week is going to be interesting.
More K-Pop on All About K-Culture:
- BTS ARIRANG Comeback 2026: Inside K-Pop's Most Epic Return
- aespa 2026 World Tour, LEMONADE Album & SYNK Complexity Guide
- Korea Music Chart Recap: Week of May 26, 2026
Instagram Hashtags: #KoreanMusicChart #MelonChart #CORTIS #REDRED #ILLIT #IOI #AKMU #aespa #LEMONADE #YENA #KPopChart #KPop2026 #KPopWeekly #KCulture #KMusicMonday



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