Artist appearances at Optimuss concerts

No artists have performed a song with Artist: Optimuss (ccd1a91c-73ca-44ef-bed1-1afb26415f23) on stage yet. Have you seen an artist hitting the stage at a Artist: Optimuss (ccd1a91c-73ca-44ef-bed1-1afb26415f23) concert? Add or edit the setlist and help improving our statistics!