<Tr> <Th> Sweden (Sverigetopplistan) </Th> <Td> </Td> </Tr> <Tr> <Th> UK Singles (Official Charts Company) </Th> <Td> </Td> </Tr> <Tr> <Th> US Billboard Hot 100 </Th> <Td> </Td> </Tr> <Tr> <Th> US Hot R&B / Hip - Hop Songs (Billboard) </Th> <Td> 38 </Td> </Tr>

Who sang if you dont know me by now