Cuba's main languages are Spanish and English. Traditional Cuban music genres include classical and folk music. Well-known Cuban musicians include Gloria Estefan. Common Cuban foods include congrí (rice and beans), black beans, rice and beans, Cuban hash, and chicken with citrus and tropical spices. Cuba's economy relies on exports of sugar, tobacco, coffee, nickel, citrus, fish, and medical products, as well as imports of food, petroleum, chemicals, and machinery.