Warren DeMartini is an American guitarist best known as a founding member of the rock band Ratt. Born on April 23, 1963, in San Diego, California, he gained fame in the 1980s during the height of the glam metal scene. His guitar work is characterized by intricate solos and a distinctive style that contributed to the band's success. DeMartini has also been involved in various side projects and collaborations throughout his career. He is recognized for his technical proficiency and has influenced many aspiring guitarists. His contributions to Ratt helped shape the sound of hard rock during that era.