<Tr> <Th> Starring </Th> <Td> <Ul> <Li> Hugh Jackman </Li> <Li> Zac Efron </Li> <Li> Michelle Williams </Li> <Li> Rebecca Ferguson </Li> <Li> Zendaya </Li> </Ul> </Td> </Tr> <Ul> <Li> Hugh Jackman </Li> <Li> Zac Efron </Li> <Li> Michelle Williams </Li> <Li> Rebecca Ferguson </Li> <Li> Zendaya </Li> </Ul> <Tr> <Th> Music by </Th> <Td> <Ul> <Li> John Debney </Li> <Li> Joseph Trapanese </Li> </Ul> </Td> </Tr> <Ul> <Li> John Debney </Li> <Li> Joseph Trapanese </Li> </Ul>

Who wrote the songs to the greatest showman