Let's have another cup of coffee,
Yes let's have a cup of Nescafe.

Years after knowing this as a commercial I found out that there was a previous actual SONG that went, "Let's have another cup of coffee,
And let's have another piece of pie."

Then there was the percolator commercial, that showed coffee bubbling up into the glass top of a percolator -- the first couple of coffee-bubbles had a soundtrack of sort of musical "blup -- blup, blup --- blup, blup, blup" which then transmogrified into a tune. I can remember the tune but not what kind of coffee it was!