FILE - In this Feb. 16, 2013 file photo, Ted Dwane, of 

FILE - In this Feb. 16, 2013 file photo, Ted Dwane, of the English folk rock band Mumford & Sons, performs at the Susquehanna Bank Center in Camden, N.J. Mumford & Sons on Thursday, June 13, 2013 announced it has canceled its headlining performance at Bonnaroo Music & Arts Festival in Tennessee. The decision comes after Dwane received treatment this week for a blood clot on his brain. (Photo by Owen Sweeney/Invision/AP, file)
Associated Press
FILE - In this Feb. 16, 2013 file photo, Ted Dwane, of the English folk rock band Mumford & Sons, performs at the Susquehanna Bank Center in Camden, N.J. Mumford & Sons on Thursday, June 13, 2013 announced it has canceled its headlining performance at Bonnaroo Music & Arts Festival in Tennessee. The decision comes after Dwane received treatment this week for a blood clot on his brain. (Photo by Owen Sweeney/Invision/AP, file)
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