Artist appearances at Demented concerts

No artists have performed a song with Artist: Demented (99e6a1c7-b65e-4768-9e40-407caa4ca98b) on stage yet. Have you seen an artist hitting the stage at a Artist: Demented (99e6a1c7-b65e-4768-9e40-407caa4ca98b) concert? Add or edit the setlist and help improving our statistics!