What song is this a parody of?

It’s on the tip of my tongue, but I can’t quite figure out what song Bob Rivers’ “Goin’ up to Bethlehem” is a parody of. Does anyone know?

For the iTunes-inclined, here’s a link to the 30 second snippet if you need it. Goin’ Up To Bethlehem

This is driving me nuts, but I know someone amongst the Teeming Millions will have the answer.

Creedence Clearwater Revival’s “Up around the Bend,” I believe. Nothing says “Christmas” quite like swamp rock.

*Up Around the Bend * Creedence Clearwater Revival
I have a question in return. How did you do the link from iTunes?

If you right click the snippet, it gives you the option to “Copy iTunes Music Store URL”.