The edgy, all-girl, all-Asian band Nylon Pink has finally returned! A lot of things have changed since the last time we've heard from them as the group is now a quartet and they've also got a new lead singer, Rayko Dig. 

With this new member format, the girls introduce their new sound with their latest single '2AM'.

Check out both the colorful hair and the jamming rock tune in the performance below!

The girls have also covered EXO's 'Overdose' to create an English, rock version of the addicting dance tune. 

Let's hear it K-Pop fans, what do you think? Let us know in the comments below!