This is a video from South Korea of a group of Pikachus dancing to celebrate the opening of a new mall when one of the pocket monsters in the front starts deflating, so a man rushes to pull the Pikachu off stage, which confuses the Pikachu secret service, who all bum-rush the man. What an exciting concert. No word how many children in the audience were traumatized by the events that unfolded, but I know I was.
Keep going for two videos: the whole performance (the action starts around 1:15, and Pikachu tries to return and fails at 4:45), and an edited one of just the highlights.
Thanks to Anthony, who agrees nobody should ever have to watch a man man-handle a man man-handling a Pickachu.