Peter John Sinfield (Fulham, London, 27 December 1943) is an English poet and songwriter. He is best known as the co-founder and former lyricist of King Crimson, whose debut album In the Court of the Crimson King is considered one of the first and most influential progressive rock albums ever released.
Sinfield's lyrics are known for their surreal imagery, often involving common fantasy concepts, nature, or the sea. They often also deal with emotional concepts and, sometimes, storyline concepts. Later in his career, he adapted his songwriting to better suit pop music, and wrote a number of successful songs for artists such as Celine Dion, Cher, Cliff Richard, Leo Sayer, Five Star, and Bucks Fizz.
In 2005, Sinfield was referred to as a "prog rock hero" in Q magazine for his lyrical work and influence in the music industry.
