One of Tiffany’s biggest charms is her eye-smile.Tiffany was born in San Francisco, California, and grew up in Diamond Bar, California[citation needed] as the youngest of three siblings. She was born in the same hospital as her fellow Girls' Generation member, Jessica. She auditioned at the SM Entertainment Starlight Casting System and joined the company on October 2004 in Los Angeles.[2][3] She was trained for 3 years and 7 months in SM Entertainment.[citation needed] Although Tiffany graduated from Korea Kent Foreign School on April 2007, she had attended primary and secondary schools in California - South Pointe Middle School (US) and Diamond Bar High School (US).[citation needed] Tiffany speaks fluently in English and Korean and conversationally in Japanese and Chinese.