AVICII performs at Austin City Limits Music Festival, Friday, Oct. 12, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)The Black Keys perform at Austin City Limits Music Festival, Friday, Oct. 12, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)Florence + the Machine perform at Austin City Limits Music Festival, Friday, Oct. 12, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)Esperanza Spalding performs at Austin City Limits Music Festival on Friday, Oct. 12 2012 in Austin, Texas. (Photo by Jack Plunkett/Invision/AP)Gotye performs at the Austin City Limits Music Festival, Saturday, Oct. 13, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)Gotye performs at the Austin City Limits Music Festival, Saturday, Oct. 13, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)Emily Haines and Metric perform at the Austin City Limits Music Festival, Saturday, Oct. 13, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)Metric's Emily Haines, left, and Joshua Winstead perform at the Austin City Limits Music Festival, Saturday, Oct. 13, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)Iggy & The Stooges perform at the Austin City Limits Music Festival, Sunday, Oct. 14, 2012, in Austin, Texas. (Photo by Jack Plunkett/Invision/AP)Patrick Riley of Tennis performs at the Austin City Limits Music Festival, Sunday, Oct. 14, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)Patrick Riley of Tennis performs at the Austin City Limits Music Festival, Sunday, Oct. 14, 2012, in Austin, Texas. (Photo by Jack Plunkett/Invision/AP)Music fans Keri Pearlsom, right and daughter Hana Pearlsom sit in their shade tent at the Austin City Limits Music Festival, Sunday, Oct. 14, 2012, in Austin, Texas. (Photo by Jack Plunkett/Invision/AP)John Paul White and Joy Williams of The Civil Wars perform at the Austin City Limits Music Festival, Sunday, Oct. 14, 2012, in Austin, Texas. (Photo by Jack Plunkett/Invision/AP)Jack White performs at the Austin City Limits Music Festival, Saturday, Oct. 13, 2012, in Austin, Texas.(Photo by Jack Plunkett/Invision/AP)