We left England to get away from such frivolity. But I like your hat. Does it have 3 corners?

does it have three corners? is that a Monty Python reference or sumthin?

I wish it had a MP reference, but I only know it as an old children's song. It involves gestures and with each repeat of the verse you eliminate a word until you are silent but gesturing

My hat, it has three corners,
Three corners has my hat
And had it not three corners,
It would not be my hat.

_____ hat, it has three corners,
Three corners has _____ hat
And had it not three corners,
It would not be _____ hat.

_____ _____, it has three corners,
Three corners has _____ _____
And had it not three corners,
It would not be _____ _____.

_____ _____, it has _____ corners,
_____ corners has _____ _____
And had it not _____ corners,
It would not be _____ _____.

_____ _____, it has _____ _____,
_____ _____ has _____ _____
And had it not _____ _____,
It would not be _____ _____

That guy stole somebody's hat, and then he ran and got his photo taken in this frame.