Glavna Rolya (Main Role) is the title of the first original song of 25-year-old Bulgarian musician Konstantin Kovachev. Kosyo recorded the piece with the help of his music teacher Misha Iliev from "Vocalize This".

Konstantin Kovachev has varied interests. He graduated from the Sofia High School of Mathematics. Later, Konstantin studied psychology in Scotland for three years. Currently he works in the IT sector. However, music has always played a major role in his life. Konstantin Kovachev started with his school band "HERS" and performed in music clubs in Bulgaria’s capital city. He has written more than 350 songs in the past five years.

“The song Glavna Rolya is about a person who is unable to find his place in life.  In the beginning he blames the stars, but quickly realizes that he has forgotten to take his raincoat to protect himself from the rain that pours down on him. At the end of the song, I use plural form, which is my meta-commentary on the situation in Bulgaria. However, the song proposes a solution – we should take our responsibility."