[talk] Seventeen's Boo Seok-soon on stage as a guest on the show

Following last year, Boo Seok-soon appeared on stage as a guest at Psy's Humduk Show concert this year too!
This is a photo that was posted on Hoshi's Instagram story.
This time too, I went on stage wearing light blue jeans to match the blue dress code😀
Boo Seok-soon always shows exciting and fun energy!
Even the members' certification shots look refreshing😁