Stefanie Sun (simplified Chinese: 孙燕姿; traditional Chinese: 孫燕姿; pinyin: Sūn Yànzī; born July 23, 1978) and also known in Teochew as Sng Yì-che or Sng Ee Tze (her birth name), is a Singaporean singer-songwriter. She has sold over 10 million copies of her albums during the span of her career thus far.
Stefanie Sun has an elder sister by three years called Sng Yee-kia (simplified Chinese: 孙燕佳; traditional Chinese: 孫燕佳; pinyin: Sūn Yànjiā), a younger brother by four years named Sng Yee-Phen (simplified Chinese: 孙毅圣; traditional Chinese: 孫毅圣; pinyin: Sūn YiPhen) and a younger sister by six years named Sng Ee-mei (simplified Chinese: 孙燕美; traditional Chinese: 孫燕美; pinyin: Sūn Yànměi).
Sun was educated at St Margaret's Secondary School, Raffles Girls' School and went on to attend Saint Andrew's Junior College. She later attended Nanyang Technological University, where she obtained a degree in Marketing. Her abilities were discovered by her music teacher, Lee Wei Song, at his music school.
In the Mandarin-speaking world, Sun is more popularly known by her Mandarin name, Sun Yanzi or Sun Yan Zi. Stefanie Sun has sold over 10 million copies in Asia. With ten albums to her name, she is arguably the most popular Mandarin female singer in Asia and the most successful singer from Singapore.