Only Fools And Horses Theme Song Lyrics (feat. Theme Only Fools and Horses Lyrics. 'Cos if you want the best ones. 'Cos if you want the best ones. I'll fetch the suitcase from the van. Stick a pony in me pocket. Opening: Stick a pony in my pocket, Fetch the suitcase from the van. Only Fools And Horses) OPENING THEME. OPENING THEME. But you don't ask questions. Then brother, I'm your man. But you don't ask questions. Only Fools and Horses Theme Song Lyrics. JOHN SULLIVAN. I'll fetch the suitcase from the van. Cos if you want the best-uns, But you don't ask questions; Then brother, I'm your man! ONLY FOOLS AND HORSES Theme from the BBC TV Series "Only Fools And Horses" Written & Performed by John Sullivan - 1981 OPENING THEME: Stick a pony in me pocket, I'll fetch the suitcase from the van. Cos where it all comes from is a mystery, It's like the changing of the seasons. Stick a pony in me pocket. Cos if you want the best 'uns, But you don't ask questions, Then brother, I'm your man.