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

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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.�