<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (September 2009) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (September 2009) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th_colspan="2"> "One" </Th> </Tr> <Tr> <Th_colspan="2"> Single by Harry Nilsson </Th> </Tr> <Tr> <Th_colspan="2"> from the album Aerial Ballet </Th> </Tr> <Tr> <Th> B - side </Th> <Td> "Sister Marie" </Td> </Tr> <Tr> <Th> Released </Th> <Td> 1968 </Td> </Tr> <Tr> <Th> Recorded </Th> <Td> 1967 </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Chamber pop </Td> </Tr> <Tr> <Th> Label </Th> <Td> RCA </Td> </Tr> <Tr> <Th> Songwriter (s) </Th> <Td> Harry Nilsson </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> Rick Jarrard </Td> </Tr> <Tr> <Th_colspan="2"> Harry Nilsson singles chronology </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> "Good Old Desk" (1967) </Td> <Td> "One" (1968) </Td> <Td> "Everybody's Talkin"' (1968) </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> "Good Old Desk" (1967) </Td> <Td> "One" (1968) </Td> <Td> "Everybody's Talkin"' (1968) </Td> </Tr> </Table> </Td> </Tr> </Table>

When was one is the loneliest number written