Coldplay has been forced to postpone the start of its North American tour by two weeks due to unspecified “production delays.” The tour in support of the band’s forthcoming fourth LP Viva La Vida was scheduled to launch in Philadelphia on June 29th. Coldplay will now hit the road with a stint in the City of Angels July 14th-15th. It will close August 4th in Boston. Tickets for the original dates will be valid for the new ones. Refunds are also available at points of purchase.