Glastonbury Music Festival

US band Fleet Foxes on the main stage at Glastonbury Festival, Glastonbury, England, on Friday June 24, 2011. (AP Photo/Mark Allan)

US band Fleet Foxes on the main stage at Glastonbury Festival, in Glastonbury, England, on Friday June 24, 2011. (AP Photo/Mark Allan)

Thom Yorke of Radiohead perform as Special Guests on the Park Stage at Glastonbury Music Festival, in Glastonbury, England, Friday, June 24, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

Bono, right, and The Edge of British rock band U2 performs at Glastonbury Music Festival in Glastonbury, Britain, Friday, June 24, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

Bono, right, and The Edge of British rock band U2 performs at Glastonbury Music Festival in Glastonbury, Britain, Friday, June 24, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

Bono of British rock band U2 performs at Glastonbury Music Festival in Glastonbury, Britain, Friday, June 24, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

Bono of British rock band U2 performs at Glastonbury Music Festival in Glastonbury, Britain, Friday, June 24, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

British singer Jessie J performs with a broken ankle on the 'Other' stage at Glastonbury Festival, in Glastonbury, England, on Saturday June 25, 2011. (AP Photo/Mark Allan)

Jessie J arrives on stage on with her leg in plaster and on crutches to perform at Glastonbury Music Festival, Glastonbury, England, Saturday, June 25, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

British singer Guy Garvey of Elbow performs on stage at Glastonbury Music Festival, Saturday, June 25, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

British band Pulp perform on the Arena Stage as 'surprise guests' at Glastonbury Festival in Glastonbury, England on Saturday June 25, 2011. (AP Photo/Mark Allan)

British singer Chris Martin of Coldplay performs on the Pyramid stage at Glastonbury Music Festival, Saturday, June 25, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

British singer Chris Martin of Coldplay performs on the Pyramid stage at Glastonbury Music Festival, Saturday, June 25, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

British singer Chris Martin of Coldplay performs on the Pyramid stage at Glastonbury Music Festival, Saturday, June 25, 2011. More than 170,000 ticket holders have arrived at Worthy Farm for the 41st festival. (AP Photo/Joel Ryan)

British singer Laura Marling performs on the Pyramid stage at Glastonbury Festival in Glastonbury, England on Sunday June 26, 2011. (AP Photo/Mark Allan)

British singer Plan B performs on the Pyramid stage, at Glastonbury Festival in Glastonbury, England on Sunday June 26, 2011. (AP Photo/Mark Allan)

US singer Paul Simon performs on the Pyramid stage, at Glastonbury Festival, in Glastonbury, England on Sunday June 26, 2011. (AP Photo/Mark Allan)

U.S singer Beyonce performs on the Pyramid stage at Glastonbury Music Festival, in Glastonbury, England, Sunday, June 26, 2011. More than 170,000 ticket holders are at Worthy Farm for the 41st Glastonbury Music Festival. (AP Photo/Joel Ryan)

U.S singer Beyonce, centre, performs on the Pyramid stage at Glastonbury Music Festival, in Glastonbury, England, Sunday, June 26, 2011. More than 170,000 ticket holders are at Worthy Farm for the 41st Glastonbury Music Festival. (AP Photo/Joel Ryan)

U.S singer Beyonce performs on the Pyramid stage at Glastonbury Music Festival, in Glastonbury, England, Sunday, June 26, 2011. More than 170,000 ticket holders are at Worthy Farm for the 41st Glastonbury Music Festival. (AP Photo/Joel Ryan)

US rapper Jay Z, centre left, and Gwyneth Paltrow arrive to watch U.S singer Beyonce performs on the Pyramid stage at Glastonbury Music Festival, Sunday, June 26, 2011. More than 170,000 ticket holders are at Worthy Farm for the 41st Glastonbury Music Festival. (AP Photo/Joel Ryan)

British Band The Kaiser Chiefs perform on the 'Other' stage at Glastonbury Festival in Glastonbury, England on Sunday June 26, 2011. (AP Photo/Mark Allan)

Legendary US blues guitarist musician BB King performs on stage at Glastonbury Festival, England, on Friday June 24, 2011. (AP Photo/Mark Allan)

Legendary US blues guitarist musician BB King performs on stage at Glastonbury Festival, in Glastonbury, England, on Friday June 24, 2011. (AP Photo/Mark Allan)