Strauss -- Der Rosenkavalier, Final Trio -- K. Battle, F. von Stade, R. Fleming

This is a clip from the 1992 New Year's Eve Concert, Richard Strauß Gala in Berlin, Germany.
Wonderful performance by three gems of the opera world: 

Sophie: Kathleen Battle 

Octavian: Frederica von Stade 

Marschallin: Renee Fleming 

Recorded on December 31, 1992 in Berlin. 

Featuring:
Andreas Schmidt
Claudio Abbado
Berliner Philharmoniker

Link: https://youtu.be/EXi8U1twwrc