Doom metal pioneers Pentagram, welcome the return of riff master Victor Griffin, and confirm that they will be playing the Roadburn festival in Tilburg, Holland in April of 2011.  Though Pentagram never broke through the mainstream, they have a core fan base of severly die-hard fans, fans who give them as much credit to the doom/slughe metal genre as Black Sabbath, Judas Priest and Witchfinder General.  No word yet on if the re-activiated line-up will record or release an album, but additional info to be posted in the coming days.