A couple of weeks ago, the site posted the fabulous song and dance routine from the Indian film Gumnaam (the song is Jaan Pehchan, the singer is Mohammad Rafi). That song got a rebirth because a snippet was used in a Heineken commercial.
Chambermaid Swing also gained notoriety through its use in an alcohol ad, this one for Bicardi. The song is performed by The Parov Stelar Band. According to Wikipedia, Parov Stelar is Marcus Füreder, who also works worldwide as a D.J.