Brethren is a group of professional male vocalists who gather with a Christian heart to make music as a ministry to themselves and others. At any given time Brethren may be represented by as few as four and as many as sixteen men, performing with or without accompaniment. Their repertoire encompasses everything from traditional hymns to patriotic standards to contemporary popular music.

Brethren performs in many configurations, from Southern Gospel quartet to doo-wop group to chamber ensemble. These and other formats are available for hire for events of all kinds, including picnics and parties, business meetings and conferences, recording sessions and festivals. Brethren is also available for full-length concerts, particularly as part of a church or community concert series. Compensation can be arranged in the form of a fee or a good-will offering; the opportunity to sell Brethren recordings at an event is appreciated.