Switching between solo expressions and The Staples Singers certainly gave Chicago's Mavis Staples twice the room to showcase her robust voice and affirming spiritual anthems. Beyond countless contributions to her politically aware family act throughout the '70s, her own artistic ambitions are apparent, especially while collaborating with Prince in the '80s and '90s, and Wilco's Jeff Tweedy in the '10s. Her diverse influence can be traced through the bill of a 2014 hometown tribute concert, which featured Bonnie Raitt, Grace Potter, members of Arcade Fire, and many others of all ages.