Red Velvet have dropped a series of mysterious teasers for what looks to be an upcoming release titled "Bad Boy".

The teaser images show Red Velvet in a comic book-inspired concept, while one image reveals a pair of red high heels. We'll have to wait for more information on 'The Perfect Red Velvet - Series 2' song "Bad Boy"!

Red Velvet's new release will be out on January 29 KST.