Ten-year-olds memorize all 600 pages of the Koran for a competition that puts your grade-school spelling bee to shame. Check out the documentary Koran by Heart at 9 p.m. on HBO.
Sufjan Stevens, who's brought the banjo back into vogue, performs at Brooklyn's Prospect Park Bandshell at 6 p.m. Death Cab for Cutie and Frightened Rabbit hit Brooklyn's Williamsburg Waterfront at 5:30 p.m.
Lollapalooza! Need we say more? Girl Talk, Ratatat, Crystal Castles, OK Go, Bright Eyes, Coldplay, Reptar, Foster the People, and so many more come to Chicago's Grant Park for Day 1, starting at 1 p.m.
Day 2 of Lollapalooza boasts Lykke Li, Beirut, Pretty Lights, Cee Lo Green, Friendly Fires, and others taking over Chicago's Grant Park at 1 p.m.
Wrap up your Lollapalooza experience with Cold War Kids, Best Coast, Arctic Monkeys, Kid Cudi, Modeselektor, and more at 1 p.m. in Chicago's Grant Park.
—By Douglas Bair