<P> The vocal group Boyz II Men released a cover of the song on their 2004 album Throwback, Vol. 1, featuring rapper MC Lyte . </P> <Table> <Tr> <Th> Year </Th> <Th> Song </Th> <Th> Hot R&B Singles </Th> </Tr> <Tr> <Th> </Th> <Td> "What You Won't Do For Love" </Td> <Td> 60 </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Song </Th> <Th> Hot R&B Singles </Th> </Tr> <Tr> <Th> </Th> <Td> "What You Won't Do For Love" </Td> <Td> 60 </Td> </Tr>

Who sang i came back to let you know