Conversation so far:
What is one major chart topping success?
The single topped the charts in Finland and Hungary, and reached the charts in six additional countries.
"Nemo" remains the band's most successful single release to date.
What year did "Nemo" release?
June 7, 2004.
What was another country that "Nemo" reached the charts in?
CANNOTANSWER.

Question: Any interesting information?
Self-contained rewrite: Any interesting information about the album, Once?