Tuva Livsdatter Syvertsen (born 16 July 1983) is a Norwegian musician (vocals, hardingfele and accordion). She was born in Oslo but grew up at Brønnøya. Syvertsen is known from a number of album releases and cooperations with Hildegunn ÃÂiseth, Aasmund Nordstoga, DumDum Boys and as a leading figure of Valkyrien Allstars.
Syvertsen is best known as a fiddle player, singer and front figure of the band Valkyrien Allstars, together with Ola Hilmen and Erik Sollid.
In 2010, she participated at the show Det store korslaget on Norwegian television TV 2, and she busted out in 3rd episode of the program. In 2012, she participated in the show Stjernekamp on NRK1.
As of 2017, Syvertsen was in a cohabiting relationship with another woman, Marie, for whom Syvertsen dedicated a yoik to honor her Sami heritage.