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Wirtanen moved to Salo when he was under a year old and studied at Lauri's school. After the death of his father when he was 11 years old, his family moved back to Heinola. At this point, songwriting and drawing had become his only means to express his feelings.
Wirtanen is also known for having written numerous songs for the Finnish pop singer Irina, and appeared in the 1999 movie Pitkä kuuma kesä, portraying the lead-singer of the school band 'The Vittupäät'.
- Ollila, Mape (2008-12-29). Once Upon a Nightwish: The Official Biography 1996-2006. Bazillion Points Books. pp. 208–. ISBN 978-0-9796163-2-7. Retrieved 18 May 2011.
- Pitkä kuuma kesä (1999) - Full cast and crew
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