A vocal quartet is a musical group consisting of four singers who perform together. These singers typically harmonize and create rich vocal textures, often without instrumental accompaniment. Vocal quartets can be found in various genres, including classical, jazz, and pop, showcasing a range of styles and techniques. One famous example of a vocal quartet is the King's Singers, known for their diverse repertoire and exceptional vocal skills. Vocal quartets often perform in a variety of settings, from formal concerts to casual gatherings, and can include a mix of voice types, such as soprano, alto, tenor, and bass, to achieve a balanced sound.