Puffy (romanized as PUFFY in Japan) or Puffy AmiYumi is a Japanese rock duo that is currently signed with Sony Music Japan. The group continues to go by the moniker of PUFFY in Japan, but in order to avoid legal naming conflicts with Sean Combs, it has adopted the name Puffy AmiYumi outside of Japan. They sing in Japanese and English.

Ami Onuki, whose nickname is Jane, and Yumi Yoshimura, nicknamed Sue, were scouted by Sony-affiliated talent agencies and put together in the mid-1990s. The band gained mainstream success in Japan during 1998, following the release of their Jet album and tour in support of it.

Their first release "Asia no Junshin" sold a million records and their success has continued with several more full-length releases (totaling 14 million sales in Japan).

(Source: Wikipedia)