<Tr> <Th> Australia (ARIA) </Th> <Td> </Td> </Tr> <Tr> <Th> Austria (Ö3 Austria Top 40) </Th> <Td> </Td> </Tr> <Tr> <Th> Belgium (Ultratop 50 Flanders) </Th> <Td> 18 </Td> </Tr> <Tr> <Th> Belgium (Ultratop 50 Wallonia) </Th> <Td> 10 </Td> </Tr>

Where does the phrase hay day come from