Chaeyoung -- a member of the K-Pop group Twice -- is apologizing for wearing a swastika on her shirt ... saying she didn't realize what the symbol was.
The singer took to IG for her mea culpa, writing ... "I sincerely apologize regarding the Instagram post. I didn't correctly recognize the meaning of the tilted swastika in the t-shirt I wore."
She adds, "I deeply apologize for not thoroughly reviewing it, causing concern. I will pay absolute attention in the future to prevent any situation similar from happening again."
Unclear when she wore the top in question, but there's a photo that shows her posing at a restaurant with a Sid Vicious graphic tee, where he's depicted in black and white ... and baring a swastika on his own shirt.
You could argue she's just a Sex Pistols fan, but some called it antisemitic -- and she obviously felt a correction was needed. As for her explanation ... some aren't buying it.
Chaeyoung has also been seen wearing QAnon shirts, and she's gotten criticism for that too. A good handful of folks feel she's promoting radicalism through her wardrobe, and that she oughta take accountability and stop it.