Stephen Malkmus, Steve West, Mark Ibold, Bob Nastanovich and Scott Kannberg of Pavement perform during the third and final day of Pitchfork Music...
Kickball Katy of Vivian Girls performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Cassie Ramone of Vivian Girls performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Kickball Katy of Vivian Girls performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Jonas Bjerre of Mew performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Bo Madsen of Mew performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Anthony Gonzalez of M83 performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Anthony Gonzalez of M83 performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Anthony Gonzalez of M83 performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Morgan Kibby of M83 performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Morgan Kibby of M83 performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Morgan Kibby of M83 performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Christopher Bear of Grizzly Bear performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Chris Taylor of Grizzly Bear performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Daniel Rossen of Grizzly Bear performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Steven Drozd of The Flaming Lips performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Daniel Rossen of Grizzly Bear performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Ed Droste of Grizzly Bear performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Wayne Coyne of The Flaming Lips performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Wayne Coyne of The Flaming Lips performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Pharoahe Monch performs onstage during the Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago.
Daniel Rossen of Grizzly Bear performs onstage during the Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago.
Brian King of Japandroids performs onstage during the Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago.
Wayne Coyne of The Flaming Lips performs onstage during the Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago.
Festival-goers dress up for the performance of The Flaming Lips during the Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago.
Singer and guitarist J Mascis of Dinosaur Jr. Performs on stage during the Pitchfork Music Festival at Union Park on July 20, 2008 in Chicago,...
Courtney Barnett performs during Pitchfork Music Festival 2015 at Union Park on July 19, 2015 in Chicago, United States.
Perfume Genius performs during Pitchfork Music Festival 2015 at Union Park on July 19, 2015 in Chicago, United States.
Sam France of Foxygen performs on stage for Pitchfork Music Festival at Grande Halle de La Villette on November 1, 2014 in Paris, France.
Grimes performs during 2014 Pitchfork Music Festival at Union Park on July 20, 2014 in Chicago, Illinois.
Grimes performs during 2014 Pitchfork Music Festival at Union Park on July 20, 2014 in Chicago, Illinois.
Meredith Graves and Marnie the Dog pose backstage at Pitchfork Music Festival at Union Park on July 20, 2014 in Chicago, United States.
Sky Ferreira and Zachary Cole Smith pose backstage at Pitchfork Music Festival at Union Park on July 20, 2014 in Chicago, United States.
Earl Sweatshirt performs on stage at Pitchfork Music Festival at Union Park on July 20, 2014 in Chicago, United States.
Martin Courtney of Real Estate performs during Pitchfork Music Festival at Union Park on July 20, 2014 in Chicago, Illinois.
Musician Victoria Legrand of Beach House performs during the 2012 Pitchfork Music Festival in Union Park on July 15, 2012 in Chicago, Illinois.
Musician Ezra Koenig of Vampire Weekend performs during the 2012 Pitchfork Music Festival in Union Park on July 15, 2012 in Chicago, Illinois.
Archy Marshall of King Krule performs onstage during the 2012 Pitchfork Music Festival in Union Park on July 15, 2012 in Chicago, Illinois.
Ezra Koenig of Vampire Weekend performs onstage during the 2012 Pitchfork Music Festival in Union Park on July 15, 2012 in Chicago, Illinois.
Lady Gaga watches the performance of Kendrick Lamar during the 2012 Pitchfork Music Festival in Union Park on July 15, 2012 in Chicago, Illinois.
Dan Whitford of Cut Copy performs during the 2011 Pitchfork Music Festival in Union Park on July 17, 2011 in Chicago, Illinois.
Ed Droste of Grizzly Bear performs during the 2009 Pitchfork Music Festival at Union Park on July 19, 2009 in Chicago, Illinois.
Singer and guitarist Stephen Malkmus of Pavement performs during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago,...
Singer Luke Temple of Here We Go Magic performs during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Guitarist Michael Bloch of Here We Go Magic performs during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Singer Alan Palomo of Neon Indian performs during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Skerrit Bwoy and Mimi of Major Lazer perform during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Keyboardist Leanne Macomber of Neon Indian performs during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Singer Alexis Krauss of Sleigh Bells performs during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Singer Annie Clark of St. Vincent performs during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Outkast's Big Boi performs during the 2010 Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Stephen Malkmus, Steve West, Mark Ibold, Bob Nastanovich and Scott Kannberg of Pavement perform during the third and final day of Pitchfork Music...
Big Boi performs during the third and final day of Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Big Boi performs during the third and final day of Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Big Boi performs during the third and final day of Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Skerrit Bwoy performs with Major Lazer during the third and final day of Pitchfork Music Festival at Union Park on July 18, 2010 in Chicago, Illinois.
Music fans watches the performance by Spoon during the Pitchfork Music Festival at Union Park on July 20, 2008 in Chicago, Illinois.
