Cost: $5 donation

Organizer: West Town Chicago Chamber of Commerce

What to expect: An environmentally focused event where all the vendors are earth-friendly (recylced crafts and solar-powered devices will be on offer) and the music is earth-shaking.

Why to go: Sure, the fest will help fun improvements to the Eckhart Park playground - but the real reason to check it out is the music. Announced acts so far including The Wailers, The Aggrolites, Cloud Cult, David Bazan and Maps and Atlases.

The full lineup:

Saturday, June 26
The Wailers
The Aggrolites
Deals Gone Bad
Caroline Smith and the Good Night Sleeps

DJ Stage
Klever
Zebo
Intel
Trew
Papa G
Full Breach Josh

Sunday, June 27
Cloud Cult
David Bazan (with band)
Maps and Atlases
Fang Island

DJ Stage
Proper Villains
Gant Man
Demchuk
Disco Death Threat
Brad Owen
Maker