Jack Black gets tenacious for St. Jude

St. Jude for children raised over half a million dollars this year for the Scotty Medlock & Robbie Krieger fundraiser. Half a million!!!! And none other than Jables of Tenacious D was the man of the hour. It's one thing to rock out for a children's charity but its a different story when you leave your own movie premier early just to make it to sound check. How Jack Black's sound check energy rivals most bands actual performance and is a great reminder of why so many people love him. That and being able to do a specific kind of pushup I still have not mastered yet.