I am Matt Nathanson aka "Guy who jokingly played first chords of 'You Shook Me All Night Long' and crowd takes it for the entire song." AMA!
My short bio:
i'm the guy who jokingly played "you shook me all night long" formally known as matt nathanson http://www.reddit.com/r/videos/comments/2vmcu5/guy_jokingly_plays_first_chords_of_you_shook_me/
i have 8 albums, some hits you might know, have toured the world and have had an amazing time doing this for almost 20 years. i spent my last video budget flying to peru to support the starkey hearing foundation and made a video for a song called "headphones" while we were there. proceeds go to help people, well, hear. check the video, support starkey and ask away.
PS - that's my friend andrew mcmahon in the back anxiously awaiting everyone to stop singing AC/DC so he can get a turn
My Proof: http://i.imgur.com/rth6UxN.jpg
EDIT: WHOA, this ruled you guys! i had no idea it was going to be this awesome, let's do this again soon. i'll let you know when, but for now i have to run to sound check!