As a member of SunStroke Project, Sergey participated at the Eurovision Song Contest 2010 in Oslo, where SunStroke Project finished 22nd, with their song "Run Away". After the contest, Stepanov, thanks to his extravagant look and dancing style, quickly became an Internet meme named "Epic Sax Guy" through a YouTube video with Sergey's instrumental solo performance during the group's Eurovision performance. It quickly went viral and spawned a number of remix videos, including a ten-hour long remixed version.