AP Photo
Fans rush into Chicago's Grant Park as the gates open for the Lollapalooza 2006 music festival on Aug. 4, 2006. The festival, which began in 1991, went on hiatus in 1998 and returned in 2003.
AP Photo
Bill Baird, bass player for the Austin-based rock band Sound Team, holds the playlist in his mouth with a tambourine around his neck as he and his band performs at the Lollapalooza Music Festival in Chicago on Aug. 4, 2006.
AP Photo
Sam Gurnick, 17, uses the text messaging feature on her cell phone to participate in an interactive scavenger game held during Lollapalooza 2006 in Chicago on Aug. 4, 2006. The festival was created 15 years ago.
AP Photo
Tom Smith, lead singer of the British rock band Editors, performs at Lollapalooza 2006 in Chicago on Aug. 4, 2006. The festival includes performances by rock and hip-hop artists, dance and comedy performances and craft booths.
GETTY IMAGES/Roger Kisby
A festival-goer enjoys a performance at Lollapalooza in Chicago's Grant Park on Aug. 4, 2006. The name of the festival, meaning "something outstanding and unusual," was chosen by organizer Perry Farrell after he heard it in a "Three Stooges" short film and liked the sound of it.
AP Photo
Fans watch as the Las Vegas-based band Panic! At The Disco performs at Lollapalooza 2006 in Chicago on Aug. 4, 2006. The festival, which was created 15 years ago, ran annually until 1997, and was revived in 2003.
AP Photo
Russell Leetch, bassist for the rock band Editors, performs at Lollapalooza 2006 in Chicago on Aug. 4, 2006. Bands including Panic! At The Disco, Kayne West and the Red Hot Chili Peppers performed at this year's festival.
GETTY IMAGES/Roger Kisby
Fans enjoy the festivities at the Lollapalooza music festival in Chicago on Aug. 4, 2006. The original Lollapalooza festival featured bands such as Jane's Addiction and Nine Inch Nails.
GETTY IMAGES/Roger Kisby
Dancers dressed as aliens perform with The Flaming Lips onstage at the Lollapalooza music festival in Chicago on Aug. 5, 2006.
GETTY IMAGES/Roger Kisby
Time Out Chicago features a "Lollapalooza Survival Guide" on their cover. The music festival ran in Chicago from Aug. 4-6.
GETTY IMAGES/Roger Kisby
Kanye West performs at Lollapalooza 2006 in Chicago's Grant Park on Aug. 5, 2006. The popular music festival was created 15 years ago.
GETTY IMAGES/Roger Kisby
Fans enjoy a performance by the Australian band Wolfmother during the Lollapalooza 2006 music festival in Chicago on Aug. 5, 2006. Iron & Wine, The Flaming Lips and Blues Traveler were among the many bands to perform over the weekend.
GETTY IMAGES/Roger Kisby
Singer-guitarist Wayne Coyne of The Flaming Lips performs at Lollapalooza 2006 in Chicago's Grant Park on Aug. 5. The festival featured over 130 bands on eight stages.
GETTY IMAGES/Roger Kisby
Australian band Wolfmother performs at Lollapalooza 2006 in Chicago on Aug. 5, 2006. The festival, which began in 1991, brings together hip-hop and rock performances, craft tables and dance and comedy performances.
GETTY IMAGES/Roger Kisby
Rapper Cee-lo, left, and DJ Danger Mouse of Gnarls Barkley perform at Lollapalooza in Chicago on Aug. 5, 2006. Among the bands to play this year were Death Cab For Cutie, Kayne West and actor Jared Leto's band, 30 Seconds To Mars.
GETTY IMAGES/Roger Kisby
A cellist performs with Gnarls Barkley onstage at Lollapalooza in Chicago on Aug. 5, 2006. The popular music festival was created 15 years ago.
GETTY IMAGES/Roger Kisby
Singer Jemina Pearl of the band Be Your Own Pet performs at Lollapalloza in Chicago's Grant Park on Aug. 5, 2006. The festival, which ran from Aug. 4-6, featured 130 different bands on eight stages.
GETTY IMAGES/Roger Kisby
Lollapalooza attendees enjoy the performance of Be Your Own Pet at the music festival in Chicago on Aug. 5, 2006.
GETTY IMAGES/Roger Kisby
Singer-guitarist Andrew Stockdale performs with his band, Wolfmother, at Lollapalooza 2006 in Chicago on Aug. 5, 2006. The weekend-long festival ran annually from 1991-1997, and was revived in 2003.
GETTY IMAGES/Roger Kisby
Blue balloons are released during a performance by The Flaming Lips at Lollapalooza in Chicago on Aug. 5, 2006. The festival was first created 15 years ago.