<Tr> <Th> Week ending </Th> <Th> Song </Th> <Th> Artist </Th> </Tr> <Tr> <Td> 7 January </Td> <Td> Only You </Td> <Td> The Flying Pickets </Td> </Tr> <Tr> <Td> 14 January </Td> </Tr> <Tr> <Td> 21 January </Td> <Td> Pipes of Peace </Td> <Td> Paul McCartney </Td> </Tr>

What was the bumber 1 song in 2004