1. 'The Sign' by Ace of Base
On February 21, 1994, Swedish band Ace of Base opened up fans' eyes with the release of their mega-hit “The Sign.” The song, off of the band's “Happy Nation” album, spent six weeks at No. 1 on the Billboard Hot 100. It recently made a comeback thanks to a feature in the 2012 movie “Pitch Perfect.” —XFINITY Entertainment Staff (Photo: Magnus Torle/AP)
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