Bonnaroo, one of the biggest North American music festivals of the year, have announced the lineup for this year's event which takes place June 13-16 in Manchester, Tennessee. The legendary Paul McCartney, who last performed at a major North American festival at Coachella in 2009, will be one of the top acts this year. Mumford and Sons, Grammy Award winners for Album of the Year, wil perform as well Tom Petty and the Heartbreakers. There will be plenty to enjoy for fans of all musical persuasions. Current pop chart stars like the Lumineers, Macklemore and Ryan Lewis, and Of Monsters and Men will take the stage. Veteran performers like Bjork, Wilco, ZZ Top, and R. Kelly are on the lineup, too. This is the 12th annual Bonnaroo festival. For complete details on the 2013 lineup, head over to the official Bonnaroo site.