Angela Aki (アンジェラ・アキ), birth name 安芸聖世美 (Kiyomi Aki), was born on 15 September 1977 in Itano, Tokushima Prefecture, Shikoku, Japan to a Japanese father and an Italian-American mother

She is a singer-songwriter, who is completely bilingual in English and Japanese because she was raised in Japan but moved to Hawaii at the age of fifteen where she graduated from Iolani School. From there, she moved on to George Washington University where she graduated with majors in politics and music.

She originally released an indie album in the United States in 2000, called These Words, which received much critical acclaim. In 2002, she composed two tracks for Let It Fall by Dianne Eclar, a teenage pop singer from the Philippines. In 2005, in Japan, she released an indie mini-album under Virgo Music entitled One, which alerted 植松伸夫 (Nobuo Uematsu) to her music. Angela Aki is now signed under Sony Music Associated Records Inc. . In 2005 she was announced as the singer of the FINAL FANTASY XII theme song, "Kiss Me Good-Bye".

On March 9, 2007, she revealed in her official blog that she is married to a music director who has been supporting her before her debut. She also revealed that while she was in Washington D.C., she had married once before but the marriage ended in a divorce.

She is good friends with JPOP star 伊藤由奈. Both singers attended the same Japanese language school.

Angela Aki is the daughter of Kiyoshi Aki, the owner/co-founder of AEON Institute of Language Education. This is one of the "Big Four" Eikaiwa (English conversation) schools in Japan.

In May 2006, Angela signed with Tofu Records in order to release English singles and albums. Her first release with Tofu was releasing Kiss Me Good-Bye as a digital single in the USA with a slightly altered track list. Later that month she performed the FINAL FANTASY XII theme song, "Kiss Me Good-Bye" at the premiere PLAY! A Video Game Symphony concert in Chicago on May 27, 2006. With orchestral backup, she played piano and sang the English lyrics, which she had written herself. She also performed her own version of "Eyes On Me," the theme song of FINAL FANTASY VIII with only the piano and her voice.

On Aki's blog, dated March 9, 2007, she announced her marriage to Japanese music producer, Hide Sanjougi. She also mentioned that it will be the second marriage for her. Her first marriage was to engineer, producer, and artist Tony Alany who coproduced her first album in Vienna, VA.

On November 29, 2013, Aki announced on her blog that she would be taking an indefinite hiatus beginning in the fall of 2014, stopping her music activities in Japan in order to attend school in the United States and study music. The subsequent TAPESTRY OF SONGS -THE BEST OF ANGELA AKI compilation and "アンジェラ・アキ Concert Tour 2014 TAPESTRY OF SONGS -THE BEST OF ANGELA AKI" tour are her final respective events prior to this hiatus.