Raymondo's Dance-O-Rama:

"After World War II, many Japanese performers and recording artists had very successful careers adopting a variety of western styles ranging from Big Band to Cha-cha, but always with a distinctive eastern flavor. One vocal group that achieved tremendous popularity in this area was the duo of Emi and Umi Ito, better known as the Peanuts. Here in the west, we were treated to their vocal stylings in Japanese monster movies, wherein they played the tiny priestesses of Mothra. Here's one of their albums, a charming selection of pop tunes from 1963 (many sung in english)."