<Tr> <Th> October 22, 2017 </Th> <Td> St. Louis </Td> <Td> Scottrade Center </Td> <Td>--</Td> <Td>--</Td> </Tr> <Tr> <Th> October 24, 2017 </Th> <Td> Chicago </Td> <Td> United Center </Td> <Td>--</Td> <Td>--</Td> </Tr> <Tr> <Th> October 25, 2017 </Th> </Tr> <Tr> <Th> October 27, 2017 </Th> <Td> Kansas City </Td> <Td> Sprint Center </Td> <Td>--</Td> <Td>--</Td> </Tr>

Who is opening for katy perry's witness tour