Costi, also known as Costi Ioniță, is a Romanian singer, songwriter and producer known for his work in pop, dance and Balkan-influenced music. Emerging in the early 2000s from Romania, he gained recognition both as a performer and as a prolific writer/producer for other artists, contributing to commercial pop and club-oriented tracks that often incorporate Eastern European folk motifs and dance rhythms. His music blends contemporary pop production with elements drawn from regional musical traditions, and he has been associated with collaborations across Romania and international markets. Costi's career spans the 2000s into the 2010s and beyond, reflecting a crossover between mainstream pop and dance-floor oriented Balkan pop.