<Tr> <Th> Starring </Th> <Td> Frank Welker Casey Kasem Mindy Cohn Grey DeLisle </Td> </Tr> <Tr> <Th> Theme music composer </Th> <Td> Rich Dickerson </Td> </Tr> <Tr> <Th> Opening theme </Th> <Td> "What's New, Scooby - Doo?" performed by Simple Plan </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr>

Who sings the theme song for what's new scooby doo