Wikipedia
Zipangu (song)
"Zipangu" (ジパング, Zipangu) is Pink Lady's 11th single, and the first, after nine consecutive number 1 hits, to only reach the highest position of number 4 on the Oricon charts. The single sold approximately 900,000 copies.
The title, Zipangu, refers to the accounts of Marco Polo on Japan.
The song was also featured on the Japanese music show The Best Ten, where it peaked at #7.
A re-recorded version of the song was included on the 2-disc greatest hits release, Innovation, released in December 2010.