Ace of Base is a Swedish pop group formed in 1987 by siblings Jonas, Linn, and Jenny Berggren, along with Ulf Ekberg. They gained international fame with their debut album Happy Nation, later re-released as The Sign, which became a global hit in the early 1990s and produced chart-topping singles like All That She Wants, The Sign, and Don't Turn Around. Known for their catchy pop sound, they continued to release hits throughout the decade, including Beautiful Life and Cruel Summer. With over 30 million albums sold, Ace of Base ranks among Sweden’s most successful music groups. Although less active since 2012, they have released rare tracks and compilations, and their music remains popular, with Jenny Berggren performing the group's songs worldwide.