Happy Nation is the debut studio album by Swedish pop group Ace of Base. It was initially released in Denmark on 16 November 1992 by Mega Records. During development of the record, the group was heavily influenced by a Jamaican reggae band residing in a nearby studio. In 1995, Guinness Book of World Records named the LP the best-selling debut studio effort in music history, at more than 19 million copies sold worldwide. By 2007, Happy Nation/The Sign had sold approximately 23 million units.