Chicago's Action Boy have released an acoustic version of their song "Powerball" via their Bandcamp page as a name-your-price download, with all proceeds from the sale (after BC's cut) going to charity. The original, electric version of this track appeared on their LP Aging Like Milk, which dropped in October of last year.
The three charities being supported are Connections for Abused Women and their Children (CAWC), Black and Pink Chicago, and End The Backlog.
You can check out the track below, or click on any of the linked text to be taken to the Bandcamp page.