My wife and I could hear someone talking or singing loudly down the block from us. Figured it was just a homeless person ranting loudly, as some tend to enjoy doing. Looked outside and was shocked to see it was a completely normal looking human being walking his dog, while singing FULL BLAST the 4 Non-Blondes song What's Up (What's going on?)...he actually sounded great too and was hitting all the high notes. Looking like he was having a blast walking his dog with no one around.
We couldn't help but smile and now that song is stuck in our heads. It also reminded me of this old goodie: