Singer Nichkhun from K-pop boy group 2PM shared a selfie Monday on Instagram, with the caption: “Did you miss me? It’s been a while.” In the photo, the singer dresses casually in a big black floppy hat and a gray top, smiling for the camera. He flaunted his fair skin and good looks.The singer appeared in KBS reality show “Let’s Go! Dream Team,” which aired Sunday.By Ko Ji-seon ()