Video footage of ANTHRAX and SLAYER drummer Dave Lombardo taking part in a backstage jam on a cover version of the AC/DC classic 'Whole Lotta Rosie' — featuring MEGADETH mainman Dave Mustaine's guitar tech, Willie G, on vocals — can be viewed below.

1991's original American 'Clash of the Titans' lineup — SLAYER, MEGADETH and ANTHRAX — will hit the road together once again on leg two of the 'American Carnage' tour. This trek kicks off September 24 at Verizon Wireless Theatre in Dallas, Texas and will play 20 dates, including New York's Nassau Coliseum, concluding at Gibson Amphitheatre in Los Angeles on October 21.

The original 'Clash of the Titans' tour united the three forces of thrash metal for the entire summer of 1991, with then-little known ALICE IN CHAINS serving as the opener.