'W Korea' has released behind-cuts of the photogenic main leads, f(x)'s Krystal and actorSeo Jun Young, filming for their upcoming short film 'Listen to My Song'. 

While Seo Jun Young sits over the keyboard, Krystal can be seen positioning herself behind the mic and sometimes sitting next to her co-star. Both appear to be focused and hard at work, concentrating on their music as the characters. The candid shots of the actors look as if they're from a polished photoshoot.

The short film will be premiering at the KT&G Sangsangmadang Cinema in March. It will also be available on their website, as well as via their SNS.