Tony Stark certainly knows how to make an entrance. After unveiling that he was the man behind the Iron Man mask in the first movie, Tony is keen to show off his invention at the Stark Expo - so he crashes the stage as Iron Man.
As the clip shows, Iron Man has become something of a cultural phenomenon. There are dancers in Iron Man costumes and people in the crowd hold up Iron Man merchandise. And of course, AC/DC is blasting through the speakers.