<Ul> <Li> Jones </Li> <Li> Jackson </Li> </Ul> <Tr> <Td> 6 . </Td> <Td> "Billie Jean" </Td> <Td> Jackson </Td> <Td> <Ul> <Li> Jones </Li> <Li> Jackson </Li> </Ul> </Td> <Td> 4: 54 </Td> </Tr> <Ul> <Li> Jones </Li> <Li> Jackson </Li> </Ul> <Tr> <Td> 7 . </Td> <Td> "Human Nature" </Td> <Td> <Ul> <Li> Steve Porcaro </Li> <Li> John Bettis </Li> </Ul> </Td> <Td> Jones </Td> <Td> 4: 07 </Td> </Tr>

When did thriller become the best selling album