Hiroko Yoshinaga, was born and raised in Japan. When she was twenty years old, she moved to San Diego, CA. Then, she has begun studying and singing in opera. She started as a mezzo-soprano; such roles in Cherbino from Le Nozze di Figaro, and Carmen. Now, she sings as a spint-soprano; such as Madame Butterfly and Turandot.
She has sung with Opera San Jose, Los Angeles Opera, San Diego Opera, San Diego Lyric Opera, Small Opera of San Diego, San Diego State University Opera Theater, San Francisco Conservatory Opera, Bay Area Summer Opera Training Institute, and American Institute of Musical Studies in Graz, Austria.