稲葉貴子 (Inaba Atsuko) is a Japanese singer, actress, coreography instructor, MC, and TV personality. She started her musical career as a member of the group Osaka Performance Doll (OPD) in 1993, moving on to the Hello! Project group Taiyou to Ciscomoon in 1999. After the group disbanded in 2000, she remained a part of Hello! Project until her contract expired in 2009. In 2014, she teamed up with a fellow former OPD member to create the group Pirit Color. They released their first CD in 2020.