Jonas Berggren

Jonas Berggren, a.k.a. Joker (born Jonas Petter Berggren, 21 March 1967, Gothenburg, Sweden).

Jonas is a talented music writer and wrote most of Ace of Base’s biggest hits including “All That She Wants”, “The Sign”, and “Beautiful Life”. He also produces and plays guitar, keyboard and sings vocals. Jonas has his own studio, called The Barn.
Jonas was the producer and composer for the album Pride by Swedish pop group Yaki-Da in 1995. He has also worked with Meja, Army of Lovers, E-Type and DJ Bobo.

He is married to Norwegian hairdresser Birthe Haugland (date of marriage 12 July, 2000) whom he met during a cruise in Norway in the summer of 1996. Together they have four children: Julia, (born 1999), Gabriel (born 2001), Amanda and Molly.