Ace of Base is a pop band from Gothenburg, Sweden, comprising Ulf Ekberg (Buddha) and siblings Jonas Berggren (Joker) and Jenny Berggren. They released their debut album in 1993 and went on to sell more than 30 million albums worldwide, topping the charts with hits such as "All That She Wants" and "The Sign". Following the formal departure of sibling/former member Malin "Linn" Berggren in 2007, the trio have recently been playing gigs in Europe and Asia, and plan to release their fifth studio album in 2010.

The Sign is listed among the Top 100 Bestselling Albums of All Time by the Recording Industry Association of America (RIAA)