The Peanuts

The Peanuts (ザ・ピーナッツ, Za Pīnattsu) were a Japanese vocal group consisting of twin sisters Emi (伊藤エミ, Itō Emi) and Yumi Itō (伊藤ユミ, Itō Yumi). They were born in Nagoya, Japan on April, 1 1941. As identical twins they had voices only slightly apart in timbre, which resulted in their singing together sounding like a solo artist utilizing double tracking or reverb.