Vivian Hsu (Atayal: Bidai Syulan; Chinese: 徐若瑄; born March 19, 1975) is a Taiwanese singer and actress.
Hsu rose to prominence in Japan, where she made her first appearance in 1995 and has become a highly recognized celebrity with her countless appearances in media during the late 1990s.
She was also the main vocalist for Black Biscuits, a Japanese dance band which released four singles, "Stamina", "Timing", "Relax", "Bye-Bye", and one album, Life. All of these four singles reached the top 5 spots of the Oricon singles chart, and Life reached No. 6 in the album chart.