A couple weekends ago was the Hardly Strictly Bluegrass Festival here in SF. It's great fun - about 750,000 people crowded into a section of Golden Gate Park for three days of free music (thank you Warren Hellman!). It's a tradition for me and my friends, even though it's gotten more and more crowded each year. So lovely though: set up a blanket, bring a bunch of food and alcohol, and have a weekend full of free music!
Here's some photos from this year:
Les Claypool's Duo de Twang was good fun: