Jack Black on Explosive Parenting, 'Mime Diet' and Tenacious D | Friday Night With Jonathan Ross 

Jonathan is joined by flamboyant School of Rock star Jack Black. Jack's recent stay in the UK had lead to some eruptive bowel movements - needing help, Jack called a doctor over to his place when the doctor needed a "sample." Mr. Dewey Finn had never never felt so vulnerable before...
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