<P> "If You Don't Know Me by Now" has since been covered by a number of other artists, most notably the English pop / soul band Simply Red, who took their version to number one on the Billboard Hot 100 in 1989 . </P> <P> The song was chosen as one of the "Songs of the Century" by the RIAA . </P> <Table> <Tr> <Th_colspan="2"> "If You Don't Know Me by Now" </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Single by Simply Red </Th> </Tr> <Tr> <Th_colspan="2"> from the album A New Flame </Th> </Tr> <Tr> <Th> B - side </Th> <Td> "Move on Out" </Td> </Tr> <Tr> <Th> Released </Th> <Td> March 27, 1989 </Td> </Tr> <Tr> <Th> Format </Th> <Td> 7" single, 12 - inch single, CD single </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Blue - eyed soul, jazz </Td> </Tr> <Tr> <Th> Length </Th> <Td> 3: 24 </Td> </Tr> <Tr> <Th> Label </Th> <Td> Elektra </Td> </Tr> <Tr> <Th> Songwriter (s) </Th> <Td> Kenny Gamble, Leon Huff </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> Stewart Levine </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Music video </Th> </Tr> <Tr> <Td_colspan="2"> "If You Don't Know Me by Now" on YouTube </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> "If You Don't Know Me by Now" </Th> </Tr>

Who did the song if you don't know me by now