Barbara Trzetrzelewska, known simply as Basia, (born 30 September 1954) is a Polish singer-songwriter and record producer. After finding initial success in the mid-1980s as a singer for the British sophisti-pop trio Matt Bianco, Basia established a solo career in 1986 and subsequently enjoyed a successful recording career featuring characteristically Latin-flavoured jazz-pop crossover songs. She is noted for possessing a wide vocal range, approximately three octaves that span from contralto to soprano tessituras, as well as her singular jazz-influenced stylings and multi-layered harmonies.  (Wikipedia)