I was at the 1up.com booth and heard the ending theme from Super Mario Bros. 2, which is one of my favorite video game tunes of all time (I used to beat the game just to play it on endless repeat). Lo! Some kid (i.e. Martin Leung) was playing a medley of songs from the Super Mario Brothers series! How freakin' cool. This is from his 2:30 performance. Unfortunately, he didn't play the ending theme from SMB2, but he did include some favorites from SMB3. He told us that he's playing with some symphony that is touring doing video game music. From a quick search, my guess is that he's playing with PLAY! Symphony. Unfortunately, Mr. Martin Yeung is impossible to find online. I'll bet that E3 propels him into video game stardom.
In any case, watching the joyful tears welling up in the eyes of all of the gamers crowded around Yeung's piano, I realized two things: repetitive video game music means a lot to gamers and that I, and many others, formed a serious emotional bond with games like Super Mario Brothers. Enjoy!
Update (5/16): I must have been typing the wrong name into Google, because I found Martin Leung on his own homepage: VideoGamePianist.com. Oops! He's already been propelled into fame with the release of this fabulous video several years back.