Jack Black’s tribute to Ozzy Osbourne singing “Mr. Crowley”

Black Sabbath’s last-ever concert turned Villa Park into a heavy metal sanctuary last Saturday, but between the earth-shaking live sets honoring Birmingham’s own metal trailblazers, a series of pre-recorded celebrity tributes stole the spotlight.

Among them, Jack Black—longtime Ozzy Osbourne friend and rock’s reigning clown prince—delivered a tribute only he could pull off: a chaotic, side-splitting recreation of Ozzy’s “Mr. Crowley” video, backed by a powerhouse squad of teen musicians who channeled pure School of Rock spirit. Uploaded to Ozzy’s official YouTube, the clip exploded to over 1.2 million views within 24 hours, as fans rushed to witness this bizarre, brilliant homage.

In true Jack Black fashion, it’s unhinged, over-the-top, and absolutely perfect. Eyes wide with faux-occult frenzy, Jack embodies every flamboyant cliché of classic rock’s wildest moments, fusing his acting chops with raw, genuine love for heavy metal’s absurdities. The result is a chaotic spectacle that feels like Jack’s spiritual homecoming.

Jack’s energy is unstoppable as he dives into the performance with unfiltered joy—grinning wildly, sprinting across the stage, pouring every ounce of himself into this high-octane cover. His vocals are eerily close to Ozzy’s, cementing this as one of the most authentic tribute covers you’ll ever hear.

Then, the real fireworks hit. Young guitar prodigy Roman Morello unleashes a blistering solo while Jack headbangs furiously beside him, belly peeking out from a bedazzled navy shirt, fully committed to the chaos. The camera then captures Jack’s whiplash-inducing headbanging as teen keyboardist Hugo Weiss conjures lush organ tones, Jack’s face twisted into a devilish grin as he rips into the next verse.

What’s even more impressive? Jack’s teen band is unbelievably tight, nailing every intricate layer of “Mr. Crowley” without missing a beat, even as Jack’s theatrical madness engulfs the stage.

Fans flooded the comments on YouTube with their own comedy gold, summing up what everyone was thinking:

“Looks like Jack Black finally remembered The Greatest Song in the World.”

“You can take the man out of the School of Rock, but you can’t take the School of Rock out of the man.”

Jack Black’s tribute doesn’t just honor Ozzy; it captures the pure, joyful chaos that made heavy metal history in the first place. If you missed it, do yourself a favor and watch below—you’ll understand why it’s going viral for all the right reasons.