On May 27, Kim Bum Soo posted on his Twitter "My favorite vocalist in the universe Ji Min came to my concert. I'm so happy!", along with a photo.
In the photo Kim Bum Soo and Park Ji Min are standing in front of the camera with their fingers raised into a 'V' sign. The two are smiling gently and posing friendly.
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Those who saw the photo commented "Park Ji Min got cuter", "Kim Bum Soo looks so proud", and "I like Ji Min the best too.”
Photo: Kim Bum Soo Twitter