Deletion of Ruth Koleva(Singer)

Comment: Has Koleva ever charted on a national chart? I am not sure what the official chart of Bulgaria is. If so, she likely passes #2. Search results show many sources in languages I cannot read which makes evaluating GNG difficult. I added two details but would like to know if she has charted
Stance: comment
Cited policy: Wikipedia:Notability (WP:MUSICBIO)