Hail Hail the Celts Are Here is the song sung by Derek Warfield. This song is also a supporters` song of Glasgow Celtic F.C. This song is not related with `Hail Hail the Gangs Are Here`, but this song arrangement based on them. == History == Prior the 1960s, the chorus is sung at Parkhead Terraces. In 1961, Glen Daly records a completely unrela......