Clausen was married to the musician Sjonni Brink who together composed "Coming Home", Iceland's entry to the Eurovision Song Contest 2011. Brink died before his first performance in the third semi-final of Söngvakeppni Sjónvarpsins 2011. Clausen has also written entries for Iceland's selections in 2012, 2014, 2016, 2017 and 2018, with her song, "Our Choice", sung by Ari Ólafsson winning Söngvakeppnin 2018, therefore heading to the Eurovision Song Contest 2018.