Previously we told you all about how this year’s VH1 Rock Honors Show — paying tribute to Heart, Genesis, Ozzy Osbourne and ZZ Top — was going to be hosted by Bam Margera in Vegas, airing live on VH1 and VH1 Classic on May 24th.

Now we’re pleased to announce that rock mega-lords Queens of the Stone Age (guitarist Joshua Homme pictured, right) and metal mainstays Alice In Chains will be joining Nickelback, Gretchen Wilson and Keane in playing the life-altering songs of their musical forbearers — and Official Rock Gods.

Here’s how it breaks down: Alice In Chains and Gretchen Wilson (no relation), will honor Heart. Keane will get freaky with Genesis. Nickelback will interpret themselves some ZZ Top. And QOTSA? Josh Homme and crew will attempt to take on the blizzard of Ozz. (Not such a far stretch, considering that QOTSA’s first release featured Homme’s old band, Kyuss, covering “Into the Void.” But we digress.) In addition, expect special appearances from Cameron Diaz, Jada Pinkett Smith, Billy Bob Thornton, Robin Williams, Criss Angel and Taylor Hawkins. Who are you most excited to see?

Tags: Cameron Diaz Genesis Gretchen Wilson Heart Keane Nickelback Ozzy Osbourne Queens of the Stone Age Rock Honors ZZ Top Alice In Chains