Artist appearances at Tandem concerts

No artists have performed a song with Artist: Tandem (b3bd4b23-16f7-47fb-ae17-e33940a0e5df) on stage yet. Have you seen an artist hitting the stage at a Artist: Tandem (b3bd4b23-16f7-47fb-ae17-e33940a0e5df) concert? Add or edit the setlist and help improving our statistics!