The lineup - who'll have completed a European tour by the time they visit the UK - includes Joey Belladonna (Anthrax), James LaBrie (Dream Theater), Geoff Tate (ex-Queensryche), Chuck Billy (Testament), Ross The Boss (Manowar), David Ellefson (Megadeth), Cronos (Venom), Gus G (Ozzy Osbourne), Blasko (Ozzy Osbourne) and drummer brothers Carmine and Vinny Appice. Many more are to be announced in due course.

The show takes place on December 16 at the O2 Academy Brixton and tickets, priced �27.50, go on presale via O2 on Friday, August 1, then general sale via Ticketmaster on Monday, August 4.