Freddy (Ricardo Hurtado) and Lawrence (Aidan Miner) teach Mr. Finn (Tony Cavalero) how to act like a grown up for his meeting with Principal Mullins (Jama Williamson) in this rockin' video clip from School of Rock! Catch brand new episodes of School of Rock weekdays at 6pm BST on Nickelodeon UK & Ireland/HD and Saturdays at 9pm/8c on Nick USA!:
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