Kostadinov began playing the piano the moment he sat in front of a musical instrument. Years later, he decided to take his talents to a new level and joined an amateur singing group. After receiving numerous awards from various festivals, he collaborated with many of his friends who were also well-known musicians. Miro has been in the music industry for 16 years and has already won two prestigious awards in Varna Discovery. He has also been invited to perform in Turkey and Kazakhstan, where his songs blew everyone away, including the jury. Later he became part of KariZma, which went on to become one of the most popular Bulgarian duets. In 2007, he recorded his first two songs as a solo musician. They were entitled "Ever Before" and "Lose Control", the latter being the first single in his debut solo record Omirotvoren.