The Eccentric Opera has been played on NTS shows including Getting Warmer w/ Jen Monroe, with Ponta De Areia ~Apenas Um Apenas Voce first played on 12 February 2025.

THE ECCENTRIC OPERA is a Japanese music duo consisting of vocalist Nami Sagara (相良奈美) and arranger/keyboardist Nahoko Kakiage (書上奈朋子). Prior to being signed by a major label, THE ECCENTRIC OPERA was simply known as "Opera" (started by Nami Sagara in 1992). Originally, the group had a third member, Yutaka Kawashima (vocalist).

Over 4 major-label albums and 1 mini-album, the group has primarily recorded self-proclaimed "eccentric" covers of classical operatic pieces, where they apply and integrate other styles/genres of music including pop, hip-hop, jazz, techno, funk, dance, and much more. Vocalist Nami Sagara, who is a classically trained soprano, demonstrates that she can sing at multiple ranges and in wide selection of languages, including English, Farsi, and Hebrew (just to name a few). THE ECCENTRIC OPERA's music has been used in Japanese TV shows, commercials, and radio shows.

Nami Sagara now performs solo under the name 'Tokyo Nammy' and lends vocals to Yoshida Tatsuya's Koenjihyakkei . Nahoko Kakiage launched a solo singing career under major label Pony Canyon (Japan) in 2002. She has released 2 solo albums.