The single album contains two songs: 'Sing Your Song' and 'Good Good Feeling.'
DFSB Kollective's case against CJ E&M is the biggest music copyright infringement case of the year in the United States.
The South Korea media giant has been sued for illegally distributing music without proper copyrights.
The special guest, Yang Dong Goon, further explained the reasoning behind his decision and gave the rappers advice on how to survive.
The singer perplexes viewers by walking up to a table and slamming her face into a birthday cake.
The SM Entertainment website was updated with 1 GIF and 7 teaser images of Victoria for f(x)'s upcoming '4 Walls' album.
There is a high chance the group will return with some adult-rated content.
One hour after the video was released, a photo of Park Bom was uploaded on the YG official instagram account, seemingly in response to the video.
Fans speculate the video is related to f(x)'s upcoming comeback
Namjoo, in her first lead role, will star alongside Jo Donghyuk as employees of the Ministry of Food and Drug Safety, investigating a series of crimes in a comic adventure.