Jack Black and young band cover Mr. Crowley for Mary Morello's 100th birthday

It seems Jack Black will never shake his role of Dewey Finn in School Of Rock – the actor and musician has just been captured jamming with a band of young teens at a birthday party for Tom Morello’s mother.

Jack Black and a Kid Band Rock Mary Morello's Birthday - American

Jack Black Leads a Real-Life 'School of Rock' to Celebrate Tom

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Jack Black Performs Ozzy Song for Tom Morello's 100-Year-Old Mom

Jack Black + Kids Cover Ozzy at Morello's Mom's 100th Birthday

Jack Black + Kids Cover Ozzy at Morello's Mom's 100th Birthday

Jack Black helped celebrate the 100 birthday of Tom Morello's

Jack Black & Kids Cover Ozzy Osbourne Hit For 100th Birthday Party

Jack Black and a bunch of kids performing Ozzy Osbourne's Mr