This summer will be the 50th Annual Philadelphia Folk Fest. That makes me feel -- well, older than 50. I was at the 10th Annual. I lived in New Hope, PA back then and used to busk under one of the canal bridges.
And I was at the 40th Annual, and a few in between. The Philadelphia Folk Fest is the granddaddy of them all. If you've never been, you should start planning now. August 19, 20, and 21. It's an awesome time!