Rockfreaks.net

Megadeth have canceled their touring plans until June 20th due to the passing of bassist David Ellefson's brother. The band commented on the situation:

Megadeth has canceled immediate tour plans as bassist David Ellefson and his family mourn the loss of his brother, who passed away on May 19, in Minneapolis, Minn. after battling cancer. A private family funeral service will be held. The band sends their deepest condolences and prayers to David during this time and ask that the fans please do the same.

This of course means that the band will not be able to appear at Copenhell, leaving Friday, June 13th without a headliner for now. The festival will release more information, including a potential replacement, shortly.