Over 30 of New York's premiere music venues are coming together to host the inaugural Green Apple Music & Arts Festival. It's the biggest Earth Day celebration in the United States, and it's happening now throughout New York City. Featuring music by Blues Traveler, Guster, Dweezil Zappa (why not?) and many, many more, it's a great way to celebrate the 36th Earth Day in New York; lots more info on their website. Find out what's happening in your city with Earth Day Network's handy search feature. We'll be back tomorrow with more ideas about how to best celebrate on Saturday.