Deai is a musical duo featuring Natsuki Sugawara and Vitaly Suntsev, a Russian musician, guitarist, and project producer.
They became famous in Japan for their Japanese covers of Soviet and Russian songs, such as "Prekrasnoye Dalyoko" (Beautiful Distance), "Luchshiy Gorod Zemli" (The Best City on Earth), and "Na Zare" (At Dawn).