Jonas Erik Altberg (born 22 December 1984, Halmstad, Sweden) better known by the pseudonym Basshunter, is a Swedish producer and singer-songwriter, best known for his number one hits Boten Anna and Now You're Gone.

He started to produce music under the stage name "Basshunter" in 2002 with the computer program Fruity Loops, and released his first albums, The Old Shit (2002) and The Bassmachine (2004), through his own website.

In April 2006, he signed with Warner Music, releasing his first single, Boten Anna. In 2007, Altberg released the single Now You're Gone, featuring entirely rewritten lyrics to appeal to a foreign market.

The single charted at number one on the UK Singles Chart where it remained for five weeks.Throughout 2007 Basshunter worked on a new album, Now You're Gone: The Album, which was released in July 2008.

Five singles were released from this album (Now You're Gone, All I Ever Wanted, Angel in the Night, I Miss You, and Walk on Water). Another single, I Promised Myself was released in November 2009.In January 2010 Basshunter was a contestant on the final series of Celebrity Big Brother (UK).

He reached the final of the show and finished in fourth place.In May 2010, the first single from Basshunter's forthcoming fourth studio album, entitled Saturday, was debuted on BBC Radio 1.