Question: What is the date of birth of the performer of song Toinen?
Sentence (from "Jenni Vartiainen"): In September of the same year, the single was followed by her debut album "Ihmisten edessä", which peaked at number six on the Finnish Albums Chart, and its eponymous second single, both of which sold gold in Finland with over 65,000 and 16,000 copies, respectively.
Relevant evidence: No