Theresa Lorraine Bazar (born 23 May 1955) is a Canadian-born English singer, best known as one half of the pop duo, Dollar.

Bazar met with success in her late teens as a member of 1970s group Guys 'n' Dolls, who scored a 1975 hit with "There's A Whole Lot of Lovin'" and went on to have a period of chart success, which also included "Here I Go Again On My Own", a composition by the 17-year-old Bazar.[1] Disillusioned with the direction of the group, her then-boyfriend and bandmate David Van Day left the group and when Bazar was subsequently dismissed by the group, they formed Dollar in 1977. Their hits began with "Shooting Star" in 1978. They then had several big hits including "Love's Gotta Hold on Me" in 1979, "Mirror Mirror" in 1981 and "Give Me Back My Heart" in 1982, until "Oh L'amour" which hit the Top 10 across Europe in 1987.

In 1985 Bazar recorded a full solo album which included the single The Big Kiss which had a  12" Extended Mix by Stock Aitken Waterman. The album would not get a release until 2019 and included the SAW mix.