This June 10, 2012 file photo shows fans during a performance by The Black Lips at the Bonnaroo Music and Arts Festival in Manchester, Tenn. Despite heat, humidity, crowds and costs, music festivals are more popular than ever, attracting millions of fans, with 270 festivals of various types annually in the U.S. and more than 800 in 57 countries.
This May 6, 2012 file photo shows George Wein, founder of the New Orleans Jazz and Heritage Festival, as well as the Newport Jazz Festival after performing a song on the piano at the New Orleans Jazz and Heritage Festival in New Orleans, Sunday, May 6, 2012. Despite heat, humidity, crowds and costs, music festivals draw traveling fans who enjoy the combination of meeting new people and the big headliners that perform.
This May 20, 2011 file photo shows festival goers arriving for the three day Hangout Music Festival in Gulf Shores, Ala. There are about 270 festivals of various types annually in the United States, and worldwide there are more than 800 in 57 countries, according to Pollstar, a trade publication covering the concert industry.