Listen to Norma: casta diva online. Norma: casta diva is an Italian language song and is sung by Antonello Gotta, Compagnia d'Opera Italiana and Gabriela Cegolea. Norma: casta diva, from the album 50 Arias for Xmas, was released in the year 2010. The duration of the song is 5:42. Download Italian songs online from JioSaavn.