徐若瑄
不敗の戀人 (py. Bùbài de Liànrén, en. Undefeatable Lover) is an album by Taiwanese singer/actress/model Vivian Hsu, released on 18 October 1999 via the BMG label. Vivian's older sister Penny sang backup on some of the tracks, and later married the producer of this album.