At a recent fan sign event, Kim Woo Bin showed up wearing an all white outfit that emphasized his new, muscular physique, more beefed up than ever before. Netizens, who immediately noticed Kim Woo Bin's enlarged muscles, ironically had some unpleasant reactions about the model-turned actor.

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Netizens rather made fun of Kim Woo Bin's "insane muscles" and commented, "What happened.. Girls loved him for his physique, but now that look is gone..", "He looks like a bobblehead", "Too much on the upper body.. He needs to work on his legs!", "Eh.. he looks kind of weird.. His upper body is huge, but his legs are so skinny", etc. 

Take a look at the photos, and also the clip above from the fan sign event. Do you think Kim Woo Bin might have concentrated on his upper body a bit too much?