<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2013) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2013) (Learn how and when to remove this template message) </Td> </Tr> <P> The Celtic Song is the song played over the public address system at Celtic Park, Glasgow when the Scottish football team Celtic run onto the pitch before kick - off . Part of the song is set to an arrangement of part of the tune of "With cat - like tread", from the 1879 Gilbert and Sullivan comic opera The Pirates of Penzance, with lyrics adapted from the American song "Hail, Hail, the Gang's All Here". The "It's a grand old team" section, however, bears no resemblance to "With cat - like tread". </P>

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