Dave Grohl of Foo Fighters is often renowned for being one of the nicest people in the music industry, and this video is just further proof of that.
The event took place on Friday night in Kansas City, when Grohl brought a 10-year-old fan named Collier Cash Rue (that's his name, really) on stage and asked him if he knew any instruments. Sure enough, Collier said that he knew the guitar - but added that all he knew were Metallica staples like 'Enter Sandman' or 'Welcome Home (Sanitarium)'.
Sure enough, that wasn't going to stop Dave Grohl or the young lad, who launched into a blast of 'Enter Sandman' to a huge concert crowd. How many 10-year-olds can say that they got to play with Foo Fighters, much less play Metallica?