Not really a coincidence. More of an "oh WOW" moment.
Invited a group of neighbors over a couple years ago. Included were a couple sisters that live a few doors down.
We were all in the basement and the one more meek of the ladies sees all the records and music paraphernalia on the walls. It prompts her to volunteer, "My nephew is in a punk band."
I'm thinking, "That's nice, probably some local group playing bars around the area..." I asked what the name of the group was, not expecting to know who they were. She says, "X." I pause and say, "...From Los Angeles?" "Yes, that's the group, have you heard of them?"
Her nephew is Billy Zoom, the guitarist. I looked it up to be sure, and sure enough, he was born in Savannah IL - and that's where these sisters are from.