Super Mario Bros theme song played by Play! A Video Game Symphony. This version sounds like it should be in the next Super Mario Bros movie. This orchestra performs a medley containing the following SMB songs: The Mario Bros. Theme Song, Water Theme, Underground Theme, Super Mario World Intro and Super Mario 64, 1st Level

For more info on Play! A Video Game Symphony and maybe even catch them in concert, check out their official site:

http://www.play-symphony.com/