Festival dijadwalkan dari 05 Agu hingga 07 Agu 2011 (2 hari).
Lollapalooza Chicago berlangsung di Chicago, United States. Berikut adalah alamat lengkap festival: GRANT PARK – CHICAGO, IL
Coldplay, Arctic Monkeys, Muse, Eminem, Deftones, Foo Fighters, Flogging Molly, Cage the Elephant, Kid Cudi, The Pretty Reckless, Two Door Cinema Club, Young the Giant, deadmau5, Skrillex, Portugal. The Man.
Genre dan sub-genre yang paling populer dari edisi sebelumnya adalah:
rock
electronic
folk
indie rock
alternative
indie
alternative rock
indie pop
experimental
electronica
garage rock
lo-fi
pop rock
dance
hard rock
post-punk
dream pop
electro
indie folk