Artist appearances at John and Mary concerts

No artists have performed a song with Artist: John and Mary (8a6c278a-a0a1-4e8d-86d5-ab61a0024bc9) on stage yet. Have you seen an artist hitting the stage at a Artist: John and Mary (8a6c278a-a0a1-4e8d-86d5-ab61a0024bc9) concert? Add or edit the setlist and help improving our statistics!