Stephanie Young Hwang (born August 1, 1989), known professionally as Tiffany or Tiffany Hwang, is an American singer and actress based in South Korea. She is a member of South Korean girl group Girls' Generation and its subgroup TTS.
Stephanie Young Hwang was born in San Francisco, California. She grew up in Diamond Bar, California, attending South Pointe Middle School. she attended Diamond Bar High School during her freshman and sophomore years (2003-2005); she graduated from Korea Kent Foreign School in Seoul. She was invited to audition at the SM Entertainment Starlight Casting System, where she auditioned with Christina Aguilera's song "The Voice Within", and joined the company on October 2004 in Los Angeles at age 15.
From 2007–2008, Tiffany appeared as the host of Mnet's Sonyeon Sonyeo Gayo Baekseo, along with Kim Hyesung. In 2009, she, along with fellow Girls' Generation member Yuri, became an MC for the MBC's music show Music Core. They left the show in July 2010 to focus on Girls’ Generation's debut in Japan, but came back in October 2011. Yuri, however, left the show again in January 2012 and Tiffany started co-hosting alongside two other Girls' Generation members, Taeyeon and Seohyun, until April 2013. They gave their farewell to the show by performing TTS's "Goodbye, Hello" as a special stage.