At the front of the queue waiting, lady at the checkout has a trolleyful.
I'm bobbing my head and humming to the tune that plays over the speakers.
The man behind me whistles as the chorus kicks in.
We laugh and remark on how irresistible the song is.
Next chorus, two ladies round the aisle to join the queue singing and dancing.
The gentleman at the back joins in.
Final chorus and there are six strangers singing, swaying and smiling among afternoon groceries
It's my turn to be served.