Sandra Nurmsalu is an Estonian singer, songwriter, and violinist. Recognized within Estonia for her genre-bending style, Nurmsalu has garnered success as both the lead singer of Urban Symphony and as a solo artist.
Nurmsalu rose to prominence in Estonia during her participation in the 2007 edition of the Eesti Televisioon talent competition Kaks takti ette. While competing on the show, she formed the band Urban Symphony, of which she became the lead singer from 2007 to 2010. With Urban Symphony, Nurmsalu won Eesti Laul 2009 and represented Estonia in the Eurovision Song Contest 2009 in Moscow with the song "Rändajad", placing sixth. After Eurovision, Nurmsalu competed in Eesti Laul twice more as a soloist: in 2014 and 2019, placing as a finalist both times.