Dave Lombardo filled in for Lars Ulrich at this 2004 show. Here they are playing The Four Horsemen.

When Lars Ulrich of Metallica became ill before the 2004 Download festival and was forced to miss the show, Metallica enlisted the help of Dave Lombardo of Slayer and Joey Jordison of Slipknot to fill his spot. Lombardo performed on “Battery” and “The Four Horsemen”. Jordison wound up playing most of the show, including “Enter Sandman”.