"I Like Traffic Lights" is a possible candidate, having the dubious distinction of being banned from the Anchor Middle Bar at Sidmouth (even Wild Rover never sank to such an indignity, it merely incurred a heavy fine). Understandable, perhaps, when you consider the words:

I like traffic lights,
I like traffic lights,
I like traffic lights,
That is what I said.
I like traffic lights,
I like traffic lights,
I like traffic lights,
Even when they're red.

Chorus:
He likes traffic lights
etc.

The number of verses is unknown, no-one ever got beyond the start of v5.