Guy Antony Chambers (born 12 January 1963) is an English songwriter, musician and record producer, best known for his work with Robbie Williams. 　　Chambers joined World Party in 1986. He co-wrote 'Love Street' with Karl Wallinger on the band's album Goodbye Jumbo. He appeared on The Mission's album Carved in Sand, providing the orchestral arrangement and piano for the song "Grapes of Wrath", and was producer for the short-lived group Stress with their debut album. 　　In 1992, Chambers formed his own band The Lemon Trees and wrote, produced and performed with them until they disbanded in 1995. The band only released one album - Open Book. Following the end of The Lemon Trees, Chambers wrote with Cathy Dennis on Am I the Kinda Girl? and other albums before meeting Robbie Williams in January 1997. Their first work together, Life thru a Lens, was released in September 1997. In the next five years, they produced four other albums: I've Been Expecting You, Sing When You're Winning, Swing When You're Winning and Escapology. Following 2002's Escapology, both Williams and Chambers went on to collaborate with other writers and artists for the next ten years, eventually reuniting for 2013's Swings Both Ways, 2017's The Heavy Entertainment Show and 2019's The Christmas Present. 　　In 2016, Chambers and Williams teamed up with Chris Heath to compose the music and lyrics for the Royal Shakespeare Company's musical adaptation of David Walliams’ book The Boy in the Dress, which opened in 2019-20 at the Royal Shakespeare Theatre, Stratford-Upon-Avon. In 2018, Chambers wrote a children’s folk opera based on the Oscar Wilde short story "The Selfish Giant". He released his debut solo piano album Go Gentle Into the Light on 3 May 2019. It reached number 49 on the UK Albums Chart.