HAIL! the supergroup featuring David Ellefson (MEGADETH), Mike Portnoy (DREAM THEATER), Andreas Kisser (SEPULTURA) and Tim "Ripper" Owens (JUDAS PRIEST, YNGWIE MALMSTEEN, ICED EARTH) will perform at this year's Rock In Rio Lisbon festival on Saturday, May 29 in Lisbon, Portugal.
