One of the coolest moments to come out of the Big 4 Tour last Summer was seeing Metallica, Megadeth, Anthrax, and (one member of) Slayer perform Diamond Head’s “Am I Evil?” together in Sofia, Bulgaria. So it was inevitable that the Big 4 would once again perform together at their first U.S. show (at the Empire Polo Club in Indio, California) this past Saturday (April 23).  And they did not disappoint, as each band joined Metallica during their encore for a rendition of the Diamond Head classic.

This time, though, Slayer guitarist Kerry King joined in on the action, while bassist Tom Araya and guitarist Jeff Hanneman were absent once again. King had said that he wanted to join the first time around but couldn’t due to time constraints. In addition to King and Slayer drummer Dave Lombardo, all of the members of Megadeth, Anthrax and Metallica once again took part in the jam.

Metallica has posted pictures (including the one above of Kerry King and James Hetfield) of the jam on their website. You can also watch fan filmed videos of the Big 4 collaboration below.

[youtube]http://www.youtube.com/watch?v=NmbhIDcKoTI&feature=channel_video_title[/youtube]

[youtube]http://www.youtube.com/watch?v=iQ0oGUOfrEs&feature=channel_video_title[/youtube]