Chris Kuroda, who has been Phish's lighting director since 1989, creates elaborate light displays during the band's concerts that are sometimes improvised in a similar fashion to their music. Justin Taylor of The Baffler wrote, "You could hate this music with every fiber of your being and still be ready to give Chris Kuroda a MacArthur "genius" grant for what he achieves with his light rig." Kuroda is often referred to by fans as the unofficial fifth member of the band, and has been given the nickname "CK5".