サーカス (Circus) is a Japanese vocal group formed in 1978, celebrated for their lush harmonies and sophisticated pop sensibility. Originally composed of siblings Yoshiko and Makoto and cousins Janet and Satoshi, the group gained recognition with their debut single “Mr. Summertime,” which became a major hit. Blending elements of pop, jazz, and soul, サーカス has continued to enchant audiences for decades with their polished vocals, timeless melodies, and refined stage presence, securing their place as enduring icons in Japan’s music scene.