The Roxy in West Hollywood, Calif., was the place to be this past weekend as Royal Machines (formerly known as Camp Freddy) delivered their annual all-star Christmas residency performances. While Friday night brought the legendary Ozzy Osbourne to the stage, Saturday's set gave fans another Camp Freddy vet, Corey Taylor, who delivered a blistering performance of the Alice in Chains classic 'Them Bones.'

As you can see in the fan-filmed clip above, Taylor definitely knows his way around the power of the original track, while guitarist Dave Navarro rocks some of the song's killer licks with aplomb.

The two-night stand featured a who's who of rock joining the Royal Machines lineup, with Ozzy and Corey leading a guest list that also included Zakk Wylde, Black Veil Brides' Andy Biersack, No Doubt's Adrian Young, ZZ Top's Billy F. Gibbons, Fred Durst, Rob 'Blasko' Nicholson, John Tempesta, Gilby Clarke and Tommy Clufetos among others.

The current Royal Machine lineup includes Mark McGrath, Dave Navarro, Billy Morrison, Chris Chaney, Donovan Leitch and Josh Freese. Freese was unable to make the performances, which led to a variety of guest drummers. As with most performances, the core outfit starts the night with surprise guests taking the stage one by one.

Check out Ozzy Osbourne's performance with Royal Machines by clicking the button below.