<Tr> <Th> US Hot R&B / Hip Hop Songs (Billboard) </Th> <Td> 7 </Td> </Tr> <Tr> <Th> US Hot Ringtones (Billboard) </Th> <Td> 6 </Td> </Tr> <Tr> <Th> US Hot Singles Sales (Billboard) </Th> <Td> </Td> </Tr> <Tr> <Th> US Pop 100 (Billboard) </Th> <Td> </Td> </Tr>

Who sings you must not know about me