There are several things going on.
There are several layers of animated 3d elements that could be created with Plexus or a 3d app and then composited on top of the video over the singer/dancers/disco ball using low opacity and maybe different transfer modes (overlay, screen...).
Video glitch - a good tutorial:
This following tutorial can be used to create the broken glass reflection look
There are several others used, Echo Effect to create the video feedback look, a Kaleidoscope filter (or made using something like in this tutorial: