A Random

SCIFI.radio story

Earth encounters a group of time-traveling tourists on a sightseeing trip to the past who perceive us only as a food even though they can all do credible singing impressions of Ethel Merman and cannot be destroyed by a nuclear bomb but a priest tells them about the God and they are turned into weird rocks that all look suspiciously like either Elvis or Madonna, but nobody can agree on which one it is.
The End.