Jussi Björling and Renata Tebaldi sing "Che gelida manina" and "Sí, mi chiamano Mimí" from Puccini´s "La Boheme". I am too overwhelmed by the perfection to write more about it.
Jussi Björling and Renata Tebaldi, in this video introduced by the famous Charles Laughton as well one of the most famous actors of the 40s and 50s.:
