The Nylons are a Canadian a cappella group that was formed in 1978. Known for their harmonious vocal arrangements, they primarily perform pop, rock, and jazz music without instrumental accompaniment. The original members were Claude Morrison, Paul Cooper, Marc Connors, and Dennis Simpson. Their signature sound is characterized by tight harmonies, beatboxing, and a rich, full sound often mistaken for instrumental backing. Among their most influential works is a rendition of "The Lion Sleeps Tonight," which gained significant international popularity.