U.D.O. were confirmed as the headliners during the first day of the Maximum Rock Festival, set to take place on August 10-12 in Cluj-Napoca, Romania.
Other bands scheduled to perform at the event are Overkill, Grave Digger, To/Die/For, Orphaned Land, Inner Wish, Indian Fall, Voices of Silence, Psycho Symphony and the Iron Maiden tribute band Iron Maidnem.