Sir Michael Philip Jagger is an English singer. He is the front man and one of the founder members of the rock band the Rolling Stones. Jagger has written most of the band's songs alongside lead guitarist Keith Richards; their songwriting partnership is one of the most successful in history, and they continue to collaborate musically. His career has spanned over six decades, and he has been widely described as one of the most popular and influential front men in the history of rock music. His distinctive voice and energetic live performances, along with Richards' guitar style, have been the Rolling Stones' trademark throughout the band's career. Jagger gained notoriety for his romantic involvements and illicit drug use, and has often been portrayed as a countercultural figure.