A Random

SCIFI.radio story

Earth receives a visit from future selves with warnings of impending doom who do not understand us even though they are radioactive and might be overpowered by a bunch of kids playing disco music on boom boxes but one cunning young man somehow convinces them that people are okay 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.