These are one the things that can happen any time and any place ... it takes a some speakers, a mic, awesome weather and a park.
I was chilling by the water in Letten when a guy out of Africa walked up, set up his speaker, microphone and started performing. I never met him prior, but he asked if someone wanted to join in so I did, then a girl from Brazil joined in as well.
So it was totally spontaneous and it worked! Life is just like that sometimes. No matter where you are from but rather where you are at.