<Dl> <Dt> "San Francisco" / "Mon fils" </Dt> </Dl> <Dt> "San Francisco" / "Mon fils" </Dt> <Table> <Tr> <Th> Chart (1967--68) </Th> <Th> Peak position </Th> </Tr> <Tr> <Td> Belgium (Ultratop 50 Wallonia) </Td> <Td> 5 </Td> </Tr> </Table> <Tr> <Th> Chart (1967--68) </Th> <Th> Peak position </Th> </Tr>

Who sang the song are you going to san francisco