

On the heels of ABBA and Roxette, Ace of Base are one of the most famous Swedish pop acts of all time who found fame on every inhabitable continent. Though the foursome's debut project was first titled Happy Nation in 1992, a re-release as The Sign a year later spawned a seemingly endless hit parade that dominated the dance floor and helped move more than 25 million copies. Not only did power pop producer Max Martin get his early bearings on 1995's sugary-sweet follow-up, The Bridge, but Lady Gaga and Katy Perry on down have championed the periodically active group.