Ace of Base, the Swedish pop group formed in 1990, consists of Jonas Berggren, Ulf Ekberg, and sisters Jenny and Linn Berggren. They conquered the world with their debut album "Happy Nation" (1992), which became known in the US as "The Sign". With hits like "All That She Wants", "The Sign" and "Don't Turn Around" they brought a fresh, sunny sound that combined Eurodance and reggae influences. Their catchy melodies and simple, yet catchy lyrics made them a worldwide phenomenon in the 90s. Ace of Base sold millions of albums and received numerous awards for their music. Although the original line-up changed over the years, their music remains timeless and is still played at parties and on radio stations all over the world. Ace of Base remains a symbol of the carefree, happy pop music of the 90s.