Kpop Idols That Were Kicked Out of Their Groups -    • Kpop Idols That Were Kicked Out of Th...  

Kpop CONTROVERSY & MISTAKES In Music Videos: Before VS After -    • Video  

Background music by DooPiano
Ateez -   • ATEEZ (에이티즈) - Answer Piano Cover  
EXO -    • EXO (엑소) - Ko Ko Bop (코코밥) Piano Cover  
aespa -    • aespa (에스파) - Black Mamba Piano Cover  
MAMAMOO -    • 마마무 (MAMAMOO) - 별이 빛나는 밤 (Starry Nigh...  

As the name suggests teasers are meant to provide kpop fans with a little sneak peak of whats to come next but sometimes controversy occurs before the next has even began Here kpop controversial teasers.
Disclaimer
No hate to K-pop Idols since they aren’t in control of the design that goes into making teasers.


ATEEZ
ATEEZ, received backlash after releasing a concept photos of ZERO: FEVER Part.1 album. Fans raised concerns of cultural appropriation regarding ATEEZ blue cornrows.

LOONA
For loona’s “PTT (Paint the Town),” music video teaser fans were debating whether the members’ attire could be considered appropriative or appreciation of Indian culture.

BLACKPINK LISA
For the money teaser Lisa is seen wearing box braids extensions which is considered cultural appropriation of the black community. Blackpink’s Lisa took it upon herself to personally apologise.

Here are some more examples of cultural appropriation
EXO kai & Chungha

MONSTA X I.M
MONSTA X’s I.M released a series of concept images for his solo debut album DUALITY. Sharp eyed fans noticed him wearing a shirt with an Islamic phrase in Arabic.

AESPA
For their debut teasers kpop fans drew comparison between the virtual League of Legends girl group K/DA & aespa’s “AI” concept.
fans noticed similar clips from  K/DA‘s “POP/STARS” music video & Aespa’s music video teaser for Black Mamba.
aespa faced another plagiarism allegations for the same mv teaser from a visual virtual artist called, Timo Helgert

When SM unveiled each member's concept teaser photo, Canadian photographer Bryan Huynh pointed out the similarity between his work.
Netizens found a resemblance between Karina teaser & a work by Japanese illustrator Hajime Sorayama
aespa’s individual teasers where the members had virtual headpieces was accused of plagiarizing British designer James Merry who

NCT
For NCT “RESONANCE Pt.2” album teaser korean netizen accused sm for allegedly “plagiarising” from fashion brand SUNNEI‘s “SPRING SUMMER 2020 CAMPAIGN”.
Downtown Boys accused NCT 127 and SM Entertainment of copying their promotional poster released in 2016.

MAMAMOO SOLAR
For solar debut album “spit it out” she revealed a series of teaser photos that caught everyone’s attention
One teaser showed Solar wearing a see through plastics skirt with skin tone short which garnered negative comments

EXO KAI
When SM released the teaser for ‘WOLF’ some fans were enraged by a small clip of Kai kissing the main character on the the cheek that SM removed it from the final music video.

(G)I-DLE SOOJIN
In April of this year cube entertainment & UNIVERSE revealed the teaser video for “Last dance.” They received backlash because Korean viewers were upset to find soojin still included in the teasers.