<Tr> <Th> Region </Th> <Th> Certification </Th> <Th> Certified units / Sales </Th> </Tr> <Tr> <Th> Australia (ARIA) </Th> <Td> Platinum </Td> <Td> 70,000 </Td> </Tr> <Tr> <Th> Canada (Music Canada) </Th> <Td> Platinum </Td> <Td> 80,000 </Td> </Tr> <Tr> <Th> Denmark (IFPI Denmark) </Th> <Td> Gold </Td> <Td> 7,500 </Td> </Tr>

What is the song boulevard of broken dreams about