[A] Boy | Ten members creating geometrical choreography masterpieces. International units maintained momentum during mandatory service periods brilliantly.
2/40
OH MY GIRL?
[B] Girl | YooA's flexibility became viral content gold. "Nonstop" kept their dreamy brand fresh against fourth-generation competition.
3/40
Lovelyz?
[B] Girl | Tinkerbell vocals wrapped in pastel aesthetics perfectly. Their sound inspired countless soft-concept groups that followed afterwards.
4/40
LE SSERAFIM?
[B] Girl | Fearless branding fits tracks like "ANTIFRAGILE." Fans copy the shoulder-bounce chorus in every mirror they pass.
5/40
f(x)?
[B] Girl | SM's experimental lab rats who made weird mainstream. "4 Walls" taught us electronic house music belongs in K-pop.
6/40
Jewelry?
[B] Girl | Member rotation system before graduation concepts existed. "One More Time" remains undefeated karaoke night champion.
7/40
Fin.K.L?
[B] Girl | First-generation blueprint creators essentially. Their ballads taught everyone how idol emotions should sound.
[B] Girl | "Something" choreography made everyone reconsider suspenders. Minah's voice could make grocery lists sound like chart-toppers.
10/40
BtoB?
[A] Boy | Ballad excellence meets comedy gold unexpectedly. Eunkwang's high notes in military band videos went viral for good reason.
11/40
AOA?
[B] Girl | Started with drums and guitars, evolved into dance queens. "Like a Cat" paw move became Halloween party essential.
12/40
ATEEZ?
[A] Boy | Stage pirates with treasure-chest energy. "Wonderland" and "Say My Name" made even non-fans learn the choreo counts.
13/40
Secret?
[B] Girl | Retro-glam shapeshifters who owned both lanes. Hyosung commanded stages like she personally built them herself.
14/40
IVE?
[B] Girl | "LOVE DIVE" and "After LIKE" ruled global playlists. Their elegant styling made rookie era look like veteran years.
15/40
TWICE?
[B] Girl | JYP struck gold nine times simultaneously. ONCE built empires from "TT" hand gestures and "Cheer Up" catchphrases.
16/40
B.A.P?
[A] Boy | Warrior concept arrived when everyone played cute. Their lawsuit exposed industry darkness while Matoki bunnies kept hope alive.
17/40
Uniq?
[A] Boy | China-Korea collaboration preceding current trends significantly. Members surfaced across entertainment industries proving lasting individual talents.
18/40
Rainbow?
[B] Girl | Color-coding helped fans remember seven members easily. "A" choreography scandals just made fan chants louder.
19/40
Orange Caramel?
[B] Girl | Sushi costumes made sense somehow, surprisingly. After School's weird daughters turned absurdist performance art into chart success.
[A] Boy | International showcase marathon runners basically. EDM-leaning tracks kept passport stamps accumulating constantly.
22/40
Kara?
[B] Girl | Their iconic hip swivel in "Mister" spawned countless tutorials. Kamilia fans witnessed them conquering Japan before it became trendy.
23/40
B.I.G?
[A] Boy | Multilingual "Hello" surprised everyone, especially Middle Eastern fans hearing Arabic versions. Sometimes thinking globally means singing locally.
24/40
April?
[B] Girl | "April Story" sounded like animated princess movies come alive. DSP created pastel perfection with orchestral flourishes throughout.
25/40
Super Junior?
[A] Boy | Invented the variety idol blueprint. "Sorry, Sorry" hand dance became office party essential worldwide. Still touring after nearly two decades!
26/40
2PM?
[A] Boy | Beast-idols who literally did backflips while singing. Taecyeon rapping shirtless became a cultural reset moment for many fans.
27/40
MYNAME?
[A] Boy | Japan tours funded Korean comebacks reliably. R&B textures rewarded patient listeners using quality headphones properly.
28/40
After School?
[B] Girl | Graduation system kept things fresh but chaotic. Orange Caramel subunit somehow made sushi costumes cool through sheer confidence.
29/40
iKon?
[A] Boy | "Love Scenario" infected playgrounds nationwide organically. Perfect proof that simple hooks written well become generational anthems.
30/40
Boys Republic?
[A] Boy | Uniform concept made every stage feel like elite academy graduation. International appeal exceeded domestic recognition by miles.
31/40
B1A4?
[A] Boy | Jinyoung writes their hits himself. "Solo Day" feels like receiving quirky vacation postcards from your most interesting friend.
32/40
Madtown?
[A] Boy | Label collapse stole their momentum tragically. Live dance breaks still circulate because talent survives business failures.
33/40
Teen Top?
[A] Boy | Synchronized so precisely they seemed telepathic. Despite "teen" branding, songs like "Miss Right" showed surprising maturity early on.
34/40
EXID?
[B] Girl | Hani's fancam literally reversed career trajectory overnight. "Up & Down" became textbook viral marketing case study.
35/40
History?
[A] Boy | "Queen" served moodiness before dark concepts peaked. Great music can't overcome contract instability, unfortunately proven here.
36/40
BLACKPINK?
[B] Girl | Four members conquered Coachella wearing designer outfits. Teddy's minimal productions maximize impact like sonic luxury brands.
37/40
Shinhwa?
[A] Boy | Orange ocean survived military service, company changes, everything. First generation legends proving longevity beats temporary fame.
38/40
STAYC?
[B] Girl | Signature teen-fresh tone in songs like "ASAP." High-note ad-libs and quirky hooks keep replay buttons very busy.
39/40
ENHYPEN?
[A] Boy | Formed on survival TV and grew into arena regulars. ENGENEs treat "Drunk-Dazed" like a rite-of-passage performance.
40/40
2AM?
[A] Boy | Ballad brothers to 2PM's party animals. Live vocals never needed backing tracks or excuses.