I heard an old tune on the radio but can't remember what it is, it's driving me crazy. I think it's an 80's ska song but not 100% sure.
It is the original song to this one covered by the Wiggles, the New South Wales Blues song.
The song you are thinking of is "Tom Hark" by The Piranhas from 1980. Which is itself a cover of an original song from 1958 by Jack Lerole, according to Wikipedia.