May 22 the 17 annual Earthfest will be showcased at the Hatshell in Boston along Storrow Drive on the Charles River Esplanad. Around 125,000 people are expected to attend this free festival which is featuring bands like Marcy Playground, The Crash Kings, Collective Soul and the Gim Blossoms.  The festival, sponsered by radio 92.9 starts at 12 and ends around 5 will also feature  exhibits and environmental displays, staffed by sponsors and non-profit environmental organizations.