Kim Soo Hyun showed up recently to support his friend and former co-star IU. He was seen in the audience of her small theater concert "One More Step...Just That Much More."

He stayed for the whole concert on May 29^th before leaving to film a commercial in China

Kim Soo Hyun and IU have been friends since they performed together in the 2011 drama "Dream High" with Suzy Bae and Ok Taecyeon.

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