METALLICA, SLAYER, MEGADETH and ANTHRAX were announced at first to play just at the Sonisphere 2010 in Poland on 16 June.

Then it turned out that the BIG 4 will run as a packВ on the next two dates of the festival - 18 JuneВ in Jonschwil (Switzerland) and 19 JuneВ Pragu (Czech Republic).

According to the official Sonisphere 2010 website then, on June 22- 23В comes the turn of Sofia, Bulgaria but with no details on the festival lineup yet.

The Sofia Sonisphere 2010 is expected to be officially announced by theВ end of January but a Romanian source has revealed that the most probable bill for both countries (Bucharest, Romania is 25 - 27 June) is:

- Metallica + Slayer + Megadeth + Anthrax (day 1);

- RammsteinВ + Heaven & Hell + Alice In ChainsВ  (the other day).

to be continued...