The Monotones were a six-member African American "doo wop" vocal group in the 1950s. They are considered a "one-hit wonder," as their only hit song was "(Who Wrote) The Book of Love", which peaked at #5 on the Billboard Top 100 in 1958. The Monotones formed in 1955 when the seven original singers ? all residents of the Baxter Terrace housing project in Newark, New Jersey[1] ? began performing covers of popular songs. The members of the Monotones were :