Stephanie Young Hwang (born on August 1, 1989 in San Francisco, California), better known by the stage names Tiffany (Hangul: 티파니) and Tiffany Young, is an American singer and actress. She is a member of the South Korean girl group 소녀시대 and its sub-unit 소녀시대-태티서, both formed by SM Entertainment. Tiffany was invited to audition at the SM Entertainment Starlight Casting System, where she auditioned with Christina Aguilera's song "The Voice Within"