Question: Who sings the theme to only fools and horses?

Disambiguated questions and answers:
context: "Only Fools and Horses" has separate theme songs for the opening and closing credits, "Only Fools and Horses" and "Hooky Street", respectively. The original theme tune was produced by Ronnie Hazlehurst and recorded on 6 August 1981 at Lime Grove Studios. Alf Bigden, Paul Westwood, Don Hunt, John Dean, Judd Proctor, Eddie Mordue, and Rex Morris were hired to play the music. The tune was changed after the first series, and the new one was written by John Sullivan (he disliked the tune for the first series, and his new one explained the show's title), and Hazlehurst conducted it. It was recorded at Lime Grove on 11 May 1982, with musicians John Horler, Dave Richmond, Bigden, and Proctor. Sullivan had intended Chas & Dave to sing it because they had enjoyed success with the "Rockney" style, a mixture of rock n' roll and traditional Cockney music. Sullivan was persuaded to do it himself by Ray Butt. Despite the creation of a new theme tune, the original one remained in occasional use. Chas & Dave did later contribute to the show, performing the closing credits song for the 1989 episode "The Jolly Boys' Outing". Both songs are performed by Sullivan himself, and not – as is sometimes thought – by Nicholas Lyndhurst.
question: Who sings the original opening theme after the first series to Only Fools and Horses?
short_answers: John Sullivan
wikipage: Only Fools and Horses
context: "Only Fools and Horses" has separate theme songs for the opening and closing credits, "Only Fools and Horses" and "Hooky Street", respectively. The original theme tune was produced by Ronnie Hazlehurst and recorded on 6 August 1981 at Lime Grove Studios. Alf Bigden, Paul Westwood, Don Hunt, John Dean, Judd Proctor, Eddie Mordue, and Rex Morris were hired to play the music. The tune was changed after the first series, and the new one was written by John Sullivan (he disliked the tune for the first series, and his new one explained the show's title), and Hazlehurst conducted it. It was recorded at Lime Grove on 11 May 1982, with musicians John Horler, Dave Richmond, Bigden, and Proctor. Sullivan had intended Chas & Dave to sing it because they had enjoyed success with the "Rockney" style, a mixture of rock n' roll and traditional Cockney music. Sullivan was persuaded to do it himself by Ray Butt. Despite the creation of a new theme tune, the original one remained in occasional use. Chas & Dave did later contribute to the show, performing the closing credits song for the 1989 episode "The Jolly Boys' Outing". Both songs are performed by Sullivan himself, and not – as is sometimes thought – by Nicholas Lyndhurst.
question: Who sings the revise theme to only fools and horses?
short_answers: John Sullivan
wikipage: Only Fools and Horses
context: "Only Fools and Horses" has separate theme songs for the opening and closing credits, "Only Fools and Horses" and "Hooky Street", respectively. The original theme tune was produced by Ronnie Hazlehurst and recorded on 6 August 1981 at Lime Grove Studios. Alf Bigden, Paul Westwood, Don Hunt, John Dean, Judd Proctor, Eddie Mordue, and Rex Morris were hired to play the music. The tune was changed after the first series, and the new one was written by John Sullivan (he disliked the tune for the first series, and his new one explained the show's title), and Hazlehurst conducted it. It was recorded at Lime Grove on 11 May 1982, with musicians John Horler, Dave Richmond, Bigden, and Proctor. Sullivan had intended Chas & Dave to sing it because they had enjoyed success with the "Rockney" style, a mixture of rock n' roll and traditional Cockney music. Sullivan was persuaded to do it himself by Ray Butt. Despite the creation of a new theme tune, the original one remained in occasional use. Chas & Dave did later contribute to the show, performing the closing credits song for the 1989 episode "The Jolly Boys' Outing". Both songs are performed by Sullivan himself, and not – as is sometimes thought – by Nicholas Lyndhurst.
question: Who sings the closing theme in the episode "The Jolly Boys' Outing" of the series Only Fools and Horses?
short_answers: Chas & Dave
wikipage: Only Fools and Horses

Long-form answers:
long_answer: John Sullivan sings the opening theme song to Only Fools and Horses, and Chas & Dave sing the closing theme song.
knowledge: content: Only Fools and Horses.... is a British television sitcom created and written by John Sullivan.
wikipage: Only Fools and Horses
long_answer: Only Fools and Horses.... is a British television sitcom created and written by John Sullivan. Only Fools and Horses has separate theme songs for the opening and closing credits, "Only Fools and Horses" and "Hooky Street", respectively. The tune was changed after the first series, and the new one was written by John Sullivan. Sullivan was persuaded to do it himself by Ray Butt. Chas & Dave did later contribute to the show, performing the closing credits song for the 1989 episode "The Jolly Boys' Outing".