During the early 1980s Jeacocke starred in the CBC-TV musical The King Of Friday Night and worked as a backup singer for Gordon Lightfoot, Rita MacNeil, Glass Tiger and Kim Mitchell.
Her 1985 debut album Feel It earned her a nomination for "Most Promising Female Vocalist of the Year" at the Juno Awards of 1986.
[3] Much of her financial success in music was in singing jingles for many 1980s Canadian broadcast advertisements.
[5] After her contract with BMG ended, Jeacocke independently released the EP Jeacocke in 1995, which included a remake of "Woman's Work" and a remake of the Jean Knight hit "Mr. Big Stuff".
In the mid-1990s, using the pseudonym J-Cock (the pronunciation of her surname), and with the act Pleasure Beat, she released eurodance remakes of Robin Beck's "First Time" and the Beatles' "Come Together", as well as a solo remake of Stevie Wonder's "You Are the Sunshine of My Life" and Queen's "We Will Rock You" (as Deeva).