<Table> <Tr> <Th_colspan="2"> "If You Leave Me Now" </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Single by Chicago </Th> </Tr> <Tr> <Th_colspan="2"> from the album Chicago X </Th> </Tr> <Tr> <Th> B - side </Th> <Td> "Together Again" </Td> </Tr> <Tr> <Th> Released </Th> <Td> July 31, 1976 (1976 - 07 - 31) </Td> </Tr> <Tr> <Th> Format </Th> <Td> 7" </Td> </Tr> <Tr> <Th> Recorded </Th> <Td> March--April 1976 </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Soft rock </Td> </Tr> <Tr> <Th> Length </Th> <Td> 3: 55 </Td> </Tr> <Tr> <Th> Label </Th> <Td> Columbia </Td> </Tr> <Tr> <Th> Songwriter (s) </Th> <Td> Peter Cetera </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> James William Guercio </Td> </Tr> <Tr> <Th_colspan="2"> Chicago singles chronology </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> "Another Rainy Day in New York City" (1976) </Td> <Td> "If You Leave Me Now" (1976) </Td> <Td> "You Are On My Mind" (1977) </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> "Another Rainy Day in New York City" (1976) </Td> <Td> "If You Leave Me Now" (1976) </Td> <Td> "You Are On My Mind" (1977) </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> "If You Leave Me Now" </Th> </Tr>

Who sings the song if you leave me now