Happy belated birthday to the sexy star, So Ji Sub!  It was revealed that he got to enjoy a surprise birthday party from the sweet cast and crew of his current KBS 2TV drama 'Oh My Venus' for which he has been rigorously filming.

The party took place during the filming of the drama at Incheon Airport on November 4 for the scene in which his character, Kim Young Ho, comes to Korea after living for a while in America.  Outside of the airport ad before they filmed, they used the time to set up the cameras to throw the surprise party with cake and candles!

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How sweet.  Except it turns out he had known they were planning to throw him the party, which caused the production crew to yell at him, "NG!" for the blooper, making everyone laugh.  To cheer up the production crew who were disappointed he found out about it, he pretended to completely taken aback, putting his acting chops up to full gear.  So cute!

The production company relayed that they had found out belatedly that So Ji Sub had been unable to rest until the day of his birthday for filming, so they wanted to relay thanks through the party.