Although U2 has been rumored to headline the Glastonbury Festival of Contemporary Performing Arts since the 1980s, it has been confirmed they will be performing at the 2010 event.   They to perform on Friday, June 25th, though the festival runs from Wednesday, June 23-Sunday, June 27th, 2010.  U2’s performance may be announced, but the rest of the line-up has not been confirmed.