Alter Bridge is an American rock band from Orlando, Florida, formed in 2004. The band consists of lead vocalist and guitarist Myles Kennedy, lead guitarist and backing vocalist Mark Tremonti, bassist Brian Marshall, and drummer Scott Phillips. Since the band's formation, there have been no line-up changes. Known for their acclaimed live shows, the band plays a melodic style of post-grunge influenced heavy metal music, which has grown more progressive and experimental over the years.