In November 2012, she released the album Hymns for the Haunted, which reached certified gold status in Sweden.

[1] She expressed interest in music at a young age, and as a teenager was the lead vocalist in the bands Oh Hollie Neverdays and Amanda and the Papas which did covers of classic songs.

[4] Jenssen's song "Do You Love Me" was played on 23 September 2008 in the beginning of the third episode of the American TV series Privileged.

"Our Time", a song from Happyland, was played on Dior's Haute Couture Fashion Show Spring Summer 2011.

[7] Prior to its release, on 7 February 2012, a teaser video for Jenssen's new single "Dry My Soul" from the album appeared on YouTube.

The full-length video was released on 14 February 2012, and was made available for streaming on her official website, and for purchase on the iTunes Store.

The track "The Carnival" from the album was featured in promotional material for American Horror Story: Freak Show on FX.

In 2015, Jenssen released her first album featuring Swedish-language tracks, titled Sånger från ön (Songs from the Island).