If you have been keeping up with the girl group via their official social media accounts, you probably noticed they have dropping hints about "Peek-A-Boo". As many assumed, "Peek-A-Boo" is indeed Red Velvet's upcoming release.
On November 7, SM Entertainment unveiled the teaser video part 1, where the girls strive out of the darkness and stare at the full moon. A moving teaser image has also been shared.
Check out the official teasers here and watch out for more on Red Velvet.