Patrick Simmons (born October 19, 1948) is an American musician best known as a founding member of the rock band The Doobie Brothers. Born in Aberdeen, Washington, he has been the only consistent member of the band throughout their tenure. Simmons wrote and sang many songs for the Doobie Brothers, including "South City Midnight Lady", "Dependin' On You", "Echoes of Love", "Wheels of Fortune" and "Black Water", the group's first #1 record.