Motorhead's Lemmy Kilmister hit the stage of the world-famous Roxy Theatre in West Hollywood, Calif., Friday (Dec. 23) as a special guest of the all-star rock collective known as Camp Freddy in celebration of his 66th birthday, which was the following day (Dec. 24). Lemmy joined Freddy to rock the Motorhead classic 'Ace of Spades.'

Lemmy was one of several guests to join Camp Freddy, which includes Jane's Addiction's Dave Navarro, ex-Cult bassist Billy Morrison and Velvet Revolver/ex-Guns N' Roses drummer Matt Sorum. The rotating cast of guest musicians also included Deep Purple's Glenn Hughes, Anthrax's Scott Ian, Billy Idol's Steve Stevens, ZZ Top's Billy Gibbons and many others.

The show was the fourth and final night of the group's fifth annual Christmas residency at the Roxy, which this year took place on four consecutive Friday nights in December. As usual, the gigs sold out almost immediately.

"Well that didn't take long! 48 hours to be precise," Billy Morrison wrote in an online post before the first gig. "If you didn't get a ticket, there's always next year, because we have now officially sold out all four residency shows at The Roxy for December ... Come prepared to have a f--king good time – we want to see the place shake."

Watch Camp Freddy Sing 'Happy Birthday' To Lemmy:
Watch Camp Freddy Perform Motorhead's 'Ace of Spades' With Lemmy: