In 1977, Lester's song "De mallemolen" ("The Merry-Go-Round"), with music written by her brother Frank, was chosen by a celebrity panel as the winner in the Dutch Eurovision selection. Lester went forward to take part in the 22nd Eurovision Song Contest, held in London on 7 May. Although "De mallemolen" had been considered a strong contender prior to the contest, it could only manage a disappointing 12th-place finish of 18 entries.