Listen to Oi Jouluyö online. Oi Jouluyö is a Finnish language song and is sung by Jarmo Lehto, Jaakko Ryhänen, Esa Ruuttunen, Hanna-Leena Haapamäki, Ari Grönthal, Pertti Eerola and Viipurin lauluveikot. Oi Jouluyö, from the album Adventin Aikaa, was released in the year 2015. The duration of the song is 6:17. Download Finnish songs online from JioSaavn.