On April 19th, Yoon Eun Hye and Kang Ji Hwan (co-stars on SBS's upcoming drama, "Lie to Me") threw a surprise birthday party for PD Kim Su Ryong at the W Hotel! On the day of his birthday, filming involved Yoon Eun Hye and Kang Ji Hwan's characters meeting for the very first time at a banquet hall.�After completing the scene, castmates and staff hid behind the curtain and began singing Happy Birthday as they emerged again with a cake. Kang Ji Hwan presented him the cake while Yoon Eun Hye gave him a training suit and shoes.� Park Hyo Joon wittily commented, "I want to smell the scent of my man", while giving him cologne as a gift. The PD commented, "Our schedule has been so hectic, I had no idea that it was my own birthday.�This is the first time I've ever celebrated it with a party at 4 AM in the morning.�I'll be working my hardest to make sure that I live up to the support of my cast and the expectations of our viewers." The drama begins airing on May 9th. Source: Sports Today via Nate