<Li> A live performance of "Black" by Corey Taylor of Slipknot appears at HMV Institute Birmingham on 13 July 2011 . </Li> <Table> <Tr> <Th> Chart (1993) </Th> <Th> Position </Th> </Tr> <Tr> <Td> US Mainstream Rock Tracks </Td> <Td> </Td> </Tr> <Tr> <Td> US Modern Rock Tracks </Td> <Td> 20 </Td> </Tr> </Table> <Tr> <Th> Chart (1993) </Th> <Th> Position </Th> </Tr> <Tr> <Td> US Mainstream Rock Tracks </Td> <Td> </Td> </Tr>

What does the song black mean by pearl jam