Artist appearances at WTF?! concerts

No artists have performed a song with Artist: WTF?! (c441cd7b-0bcb-43e8-8ad7-99a579e3c0c2) on stage yet. Have you seen an artist hitting the stage at a Artist: WTF?! (c441cd7b-0bcb-43e8-8ad7-99a579e3c0c2) concert? Add or edit the setlist and help improving our statistics!