Artist appearances at Countdown concerts

No artists have performed a song with Artist: Countdown (569fe7f2-ce26-4ebd-83a5-ccc0528b699d) on stage yet. Have you seen an artist hitting the stage at a Artist: Countdown (569fe7f2-ce26-4ebd-83a5-ccc0528b699d) concert? Add or edit the setlist and help improving our statistics!