<Table> <Tr> <Td> <Table> <Tr> <Td> </Td> <Td> Mandalay Bay hotel </Td> </Tr> </Table> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> Route 91 Harvest country music festival grounds </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Td> <Table> <Tr> <Td> </Td> <Td> Mandalay Bay hotel </Td> </Tr> </Table> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> Route 91 Harvest country music festival grounds </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> </Td> <Td> Mandalay Bay hotel </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Mandalay Bay hotel </Td> </Tr>

Who was playing at music festival in las vegas