It seems like MAMAMOO is gearing up for a comeback!
On MAMAMOO's official Twitter account, the number '9966' was displayed in blue, red, and white. Along with the pitch-black background, this constitutes the colors of the Korean flag. Maybe we'll see something about the group's cultural roots?
The post also had a checkmark next to the date March 14th, 2019. Are you looking forward to this potential comeback?
Hmmm... not sure the author is talking about. I'm not getting any Korean flag connection here. The colors aren't really right for that - more like a "neon" retro theme or color printer test sheet - Black, White, Cyan, & Magenta.