On the evening of December 6, Yoo Ah In was invited to the 'GQ Men of the Year 2017' event in Seoul.

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The actor appeared rather happy, smiling brightly as he greeted fellow guests and socially conversed with them.  He also agreed to pose in front of the photo wall as camera crew snapped the shutter button away at rapid speed, in a cheerful mood.

Not only that, Yoo Ah In grabbed the attention of many with his unique fashion sense.  The dress code for the night was 'red'.  He wore a black dress suit with a red and blue striped shirt inside.

Prior to this, Yoo Ah In, well known for his outspoken mannerisms, held a heated debate with netizens, movie critic Park Woo Sung, idol trainee Han Seo Hee, and even causing a psychiatrist to diagnose him with hypomania in response to his lengthy comments on social media.