The paper researched, presented and analyzed the topic of achieving publicity through mass media and social networks - case study: The performance of the group Let 3 on the Eurovision song contest. Mass media and social networks play a major role in achieving publicity and are a revolutionary way of communicating with the public. By creating a quality communication strategy, music performers can achieve a high level of publicity. Communication technology, mass media and finally information technology have revolutionized the way people communicate. The first part of the paper refers to the structure of the paper. In this chapter, the subject of the research, the goals and purpose of the paper, research question, hypothesis, methodology and the structure of the work are stated. The second part of the paper is based on the study of social networks and mass media. Their influence and their use for the purpose of self-promotion is defined. The third part of the paper presents music as a communication tool on social networks and mass media. Along with the available literature, the connection between music and communication is analyzed and how music can be a means of manipulation in communication. The fourth part of the paper refers to the case study of the thesis, where content analysis is carried out before and after the performance of the group Let 3 on the Eurovision song contest. The fifth part of the paper presents the conclusion of the paper on the mentioned topic with the proof of the previously set hypotheses.