How BLACKPINK, NewJeans, and aespa Turned a Seoul Street Style Into a Global Fashion Movement

When BLACKPINK, NewJeans, and aespa started showing up in oversized layers and muted neutrals at performances and fashion weeks, fans noticed immediately, and then they started dressing the same way.

That quiet visual shift helped propel Acubi, a Seoul-born streetwear aesthetic, from a local styling approach into one of the most-talked-about fashion movements on the internet. Named after the label Acubi Club, which pioneered the look, the aesthetic draws on early-2000s Y2K sensibility while steering away from glossy metallic maximalism in favor of soft neutral tones, modular layers, and oversized silhouettes. The #Acubi hashtag now generates roughly 87,000 posts per day on Instagram and around 65,000 on TikTok, numbers that reflect genuine wardrobe adoption, not just passive scrolling.

"K-pop functioned less as the origin and more as an accelerator, transforming a local styling approach into a globally recognized look," said Heewon Yuh, youth fashion strategist at trend forecaster WGSN. "As global Y2K reached saturation, there was a growing appetite for something subtler and more modular."

The aesthetic emerged around 2021 and found its footing partly because it photographs beautifully. "Acubi is very much a digital-age aesthetic," said Jaana Jätyri, founder and CEO of trend forecaster Trendstop. "It photographs well, layers easily, and fits seamlessly into everyday content creation." That quality has made it a natural fit for short-form video platforms, where outfit breakdowns and piece-by-piece guides have spread the look to audiences well outside K-pop fandoms.

On Pinterest, curated pins highlight the wardrobe essentials, black combat boots, wide-leg cargo pants, bandeau crop tops, while other posts emphasize how affordable the look actually is to build. TikTok users describe it as "emphasizing the art of layering basics" and as a style that "mixes Y2K minimalism with a grunge twist." Both descriptions capture something real about Acubi's appeal: it reads as considered without feeling precious.

Fashion analysts point to a deeper cultural shift driving the trend's momentum. "In periods of economic and social tension, fashion tends to soften," Jätyri noted, adding that Acubi "lets young consumers be fashionable without feeling on display." Rose Coffey, senior foresight analyst at The Future Laboratory, echoes that read, citing younger consumers' "desire for stability and a sense of control" as a key motivation behind their move toward more adaptable wardrobes.

Acubi's rise is also part of a broader story about Korean cultural influence. Google Trends data shows searches for Korean fashion peaked in both the UK and the US in February 2026, a spike that coincided with K-pop appearances at London Fashion Week, including Stray Kids' Seungmin and Girls' Generation's Yoona at Burberry's FW26 closing show on February 23. Searches for Musinsa Standard, South Korea's largest online fashion platform, also peaked that same month.

"For many audiences, Korean culture, including fashion, beauty, and food, is very attractive, and they want to consume as much of it as possible," said Professor Dal Yong Jin of Simon Fraser University, an expert on Korea's cultural influence. He notes that institutional support, including both government and corporate investment in hallyu content, has helped sustain and amplify that global appeal. Jin does flag a counterpoint raised by some critics: the rapid spread of Korean popular culture could, in some markets, crowd out homegrown cultural products, a tension worth watching as the wave continues to build.

What began as a look popularized by female K-pop idols has since become genuinely gender-neutral. In menswear, Acubi leans toward Techwear influences, with fitted overshirts or cropped torn sweaters paired with heavily baggy jeans or parachute cargo pants. Retailers like Lewkin now market dedicated "Acubi Men" lines featuring oversized hoodies and street-style knits.

Fast fashion has caught up quickly. Shein offers a wide range of Acubi-consistent pieces, while London-based label Minga London has published a dedicated styling guide. Zara has begun incorporating similar silhouettes into recent collections, and premium high-street brand COS has introduced oversized cuts in its latest lineup. Further up the market, Gucci's Cruise 2025 collection featured relaxed silhouettes, and Fendi has presented similarly minimalist-leaning work, suggesting the aesthetic's influence is now moving through multiple tiers of fashion simultaneously.

"For fashion brands and mainstream retailers, this signals a move towards designing products that function across multiple styling contexts, climates and moods," Coffey said.

Acubi's staying power likely comes down to exactly that versatility, a modular, wearable wardrobe logic that can travel across seasons, price points, and body types. It may have arrived as a trend, but the way it's being built into collections at every level suggests it's earning its place as something closer to a lasting aesthetic shift.