Susan Pesklevits (born 19 August 1948 in Saskatoon, Saskatchewan) was a Canadian singer who later adopted the stage name Susan Jacks. She began performing at age fifteen on the national television show Music Hop and appeared on several other Canadian programs, establishing her presence in the local music scene. Her first recorded singles were released with the Vancouver duo “The Eternal Triangle,” and in 1966 she met Terry Jacks, who would become her musical partner and husband. The duo formed the trio The Poppy Family, achieving international success with the 1969 single "Which Way You Goin' Billy?", which reached Number 1 in Canada and Number 2 on the U.S. Billboard chart. After the group disbanded in 1970, Susan Jacks released her solo debut I Thought of You Again in 1973, earning a Juno nomination for Female Vocalist of the Year. She followed with the albums Dream (1975), Ghosts (1980), and Forever (1982), the latter produced under Polydor Records. Her singles "You Don't Know What Love Is" (1973) and "Forever" (1982) charted in Canada, while "Another Woman's Man" (1984) received a Juno nomination. Susan Jacks performed extensively across North America, appeared on television specials, and later worked as a staff songwriter in Nashville. After a kidney transplant in 2010, she returned to the stage and performed a benefit concert in 2011. Susan Jacks died on 25 April 2022 in Surrey, British Columbia, following complications from kidney disease.