'SM Station' released an official teaser image for an f(x)'s Luna and 4men's Shin Yong Jae collaboration, "It's You."

The song seems like it will give off a winter, romantic feel, as the image looks almost like a snow globe with a girl and a boy interacting at a coffee cart. Also, the the released lyric reads, "The night sky shimmers because it's you...I want to hug you warmly...

Luna has revealed that she used to be a fan of Shin Yong Jae when she was a trainee, so the collaboration will surely be amazing! The song will be released on December 16.