One of the few music festivals around that continues to get more popular each year, Rock the Garden’s expanded two-day lineup features 10 bands from the well of wonder that is the world of contemporary indie art-rock. Conor Oberst (Bright Eyes) and Belle & Sebastian headline day one. Day two features resurgent ’90s punksters Babes in Toyland and Modest Mouse. Filling out the lineup are thestand4rd, Lucius, Courtney Barnett, the Ghost of a Saber Tooth Tiger (featuring Sean Lennon), JD McPherson, and Seun Kuti & Egypt 80. June 20-21, Walker Art Center, 612-375-7600, walkerart.org