Yaroslav was born in Shakhtersk (Sakhalin Oblast). Date of birth - October 18, 1983.
In 1997, Sumishevsky successfully graduated from a children's music school, where experienced teachers taught a talented boy to play the accordion brilliantly. Three years after that, Yaroslav graduated from an ordinary secondary school.
After the school years were left behind, Yaroslav decided that it was time to choose his life path. Warmly remembering the music school, he chose music as his life's work. Yaroslav Sumishevsky enrolled in conducting and choral studies at the Sakhalin College of Arts (Yuzhno-Sakhalinsk). During his studies, the young man already showed his talent with might and main – participated in regional music competitions, taking first places and winning the love of the public, performed at government concerts.
After college, Yaroslav Sumishevsky decided to move to a big city with great opportunities – to Moscow. He entered the vocal faculty of the Moscow State University of Culture and Arts and successfully graduated in 2009.