Savatage is a heavy metal/progressive metal band founded by the brothers Jon and Criss Oliva in 1979. The band is known for recording many rock operas. Early on, Savatage was a traditional heavy metal band, who stood out from the pack due to guitarist Criss Oliva's uncommonly heavy riffing and vocalist Jon Oliva's unique vocal stylings. Following the failure of Fight for the Rock, an attempt to commercialize their sound, Savatage began moving in a more operatic direction, releasing a number of rock opera albums in collaboration with producer Paul O'Neill. After the tragic death of Criss Oliva, the band soldiered on to continued critical acclaim but diminishing commercial success. However, Oliva and O'Neill lucked out when a single from Dead Winter Dead, "Christmas Eve (Sarajevo 12/24)", managed to crack the singles chart. The song, a reworking of a classic Christmas hymn, acted as a launching pad for the immensely successful Trans-Siberian Orchestra project. Savatage is currently considered to be split up. Guitarist Chris Caffery, vocalist Zakk Stevens, and even Oliva himself have all collaborated to some extent on each others' solo projects. Rumours persist that the band will eventually perform a few farewell shows with a companion live CD/DVD release.