Helena Marianne Josefsson is a Swedish singer, songwriter and activist. She is the lead singer in the band Sandy Mouche and has been singing in Per Gessle’s projects since 2003 (including Roxette, Gyllene Tider and Gessle’s solo albums). In February 2007 she released her first solo album, Dynamo. Josefsson also participated as backing vocalist in various musical projects, mostly Swedish. In 2016 she recorded a jazz-covers album with Swedish trio Kontur, as well as cooperated with Roxette’s bass guitarist Magnus Börjesson in a “jazz electronique” project.