[1] Karin Amanda Bergman Hollingby began her professional career under the stage name Hajen (Swedish for "the shark") and used the name Idiot Wind from 2010 to 2014.

[3] The band released its debut album Sky City in January 2015.

She was previously married to Kristian Matsson, also known as The Tallest Man on Earth and they cooperated on the soundtrack of Swedish director Gorki Glaser-Müller's film En Gång Om Året (Once A Year).

In 2015, she had a hit with "Vintersaga", a cover of a song by Ted Ström, after it was featured in a Volvo car ad.

[6] In 2016, Bergman was handpicked to perform at the Polar Music Prize ceremony, celebrating laureates Max Martin and Cecilia Bartoli.