"Сърцето ми" (Surtseto mi) is a defining ballad by the late Bulgarian pop-folk sensation . Released posthumously in late 2021, the song serves as a poignant reminder of the singer's emotional range and the "honeyed" vocal style that earned him the nickname the "Bulgarian Justin Bieber". The Song: "Сърцето ми" (My Heart)

: He became a teen idol through massive hits like "Грешка беше" (Greshka Beshe) and a series of popular duets with Emilia .

: The music was composed by Denis himself alongside his father, the renowned jazz guitarist Ateshkan Teofikov , while Denis authored the lyrics.