<Tr> <Td> 18th </Td> <Td> 2017 </Td> <Td> April 14--16 April 21--23 </Td> <Td> <Ul> <Li> Radiohead </Li> <Li> Lady Gaga </Li> <Li> Kendrick Lamar </Li> </Ul> </Td> <Td> $114.6 million </Td> <Td> 250,000 (attendance, act.) </Td> <Td> 125,000 </Td> </Tr> <Ul> <Li> Radiohead </Li> <Li> Lady Gaga </Li> <Li> Kendrick Lamar </Li> </Ul> <Tr> <Td> 19th </Td> <Td> 2018 </Td> <Td> April 13--15 April 20--22 </Td> <Td> <Ul> <Li> The Weeknd </Li> <Li> Beyoncé </Li> <Li> Eminem </Li> </Ul> </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Ul> <Li> The Weeknd </Li> <Li> Beyoncé </Li> <Li> Eminem </Li> </Ul>

Where does the firefly music festival take place