Stoyan Yankoulov ( , born 10 September 1966 ) , also known as Stundzhi ( Bulgarian : Стунджи ) , is one of Bulgaria 's most popular and renowned drummers and percussionists . Yankoulov formed the duo Elitsa & Stoyan to represent Bulgaria in the Eurovision Song Contest 2007 in Helsinki , and once again they represented Bulgaria in the Eurovision Song Contest 2013 in Malmö
Eurovision Song Contest 2013
Eurovision Song Contest 2013
Stoyan Yankoulov