Artist appearances at Mack Geiger concerts

No artists have performed a song with Artist: Mack Geiger (e07e1915-2fe7-4ffb-acd8-8ae47ce58207) on stage yet. Have you seen an artist hitting the stage at a Artist: Mack Geiger (e07e1915-2fe7-4ffb-acd8-8ae47ce58207) concert? Add or edit the setlist and help improving our statistics!