Slayer - The Big Four - Live from Sofia, Bulgaria Jun 22, 2010

On June 16, 2010, at the Sonisphere Festival at Bemowo Airport in Warsaw, Poland, the "big four" of American thrash metal—Metallica, Slayer, Megadeth, and Anthrax—performed together for the first time. Slayer was the third band to go and play 12 songs.