Leon Somov & Jazzu were a Lithuanian electronic music duo that formed in 2005. The group consisted of Leonas Somovas, known as Leon Somov, and Justė Arlauskaitė, known as Jazzu. Their musical journey evolved when they started performing with a live band consisting of five musicians in 2008. They released their debut album Offline in 2007. The duo gained significant recognition for hits such as "Score", "Phantoms of the Lake", and "Song About Love". Leon Somov & Jazzu toured extensively across Europe, including Lithuania, the UK, Germany, Belgium, Denmark, the Netherlands, and Ireland. They won multiple awards, including Best Baltic Act at the 2009 MTV Europe Music Awards, Best Electronic Music Band at the Lithuanian music association awards M.A.M.A in 2011 and 2013, and Album of the Year and Band of the Year in 2013. They released the album Istorijos in 2015. The duo announced their split in December 2017, with their final performances taking place in 2018.