Artist appearances at Onion concerts

No artists have performed a song with Artist: Onion (ca503437-dcfa-430c-b2ff-9b7efebfc301) on stage yet. Have you seen an artist hitting the stage at a Artist: Onion (ca503437-dcfa-430c-b2ff-9b7efebfc301) concert? Add or edit the setlist and help improving our statistics!