Puffy (sometimes stylized in all-caps), also known as Puffy AmiYumi in the US, are a Japanese pop rock duo formed in Tokyo in 1995, consisting of singers Ōnuki Ami (born '73/9/18) and Yoshimura Yumi (born '75/1/30). In the United States, they adopted the name Puffy AmiYumi to avoid legal naming conflicts with Sean Combs, who also performed under the name Puffy. The duo sings in Japanese as well as in English and Mandarin Chinese.
Both Ami and Yumi were scouted by Sony-affiliated talent agencies and put together in the mid-1990s. Most of their work was produced or co-written by Okuda Tamio and Andy Sturmer, formerly of the bands Unicorn and Jellyfish, respectively.[1][2]