In a text of the Padstow May song given by Lucy Broadwood in JFSS, #20, 1916, we find the horns thus:

Thou might'st have shown thy knavish face,
Thou might have tarried at home O,
But thou shalt be an old cuckold,
And thou shalt wears the horns.
Chorus: With Hal-an-tow, and jolly rumble O,
For summer is acome O, and winter is ago.
And in every land O, the land that ere we go.