Patrick Simmons is an American musician best known as a founding member of the rock band The Doobie Brothers. He plays guitar and provides vocals for the group, contributing to their signature sound that blends rock, pop, and R&B elements. Simmons has been with the band since its inception in 1970 and has written several of their popular songs. Throughout his career, Simmons has been recognized for his musical talent and has participated in various projects outside of The Doobie Brothers. He has released solo albums and collaborated with other artists, showcasing his versatility as a musician.