Ace of Base is a Swedish pop group formed in 1990, known for their catchy melodies and reggae-influenced sound. The band consists of siblings Ulf Ekberg, Jonas Ekberg, and Jenny Berggren, along with Linn Berggren. They gained international fame in the early 1990s with hits like "All That She Wants" and "The Sign." Their debut album, "Happy Nation," released in 1992, was a commercial success, leading to multiple awards and recognition worldwide. Ace of Base is often credited with helping to popularize the Eurodance genre, and their music continues to influence pop artists today.