What annual concert by the Vienna Philharmonic traditionally ends with the Radetzky March?

The Vienna New Year's Concert traditionally ends with the Radetzky March.

The concert is performed by the Vienna Philharmonic in the Golden Hall of the Musikverein in Vienna. Its program focuses mainly on music by the Strauss family and related composers, especially waltzes, polkas, and marches. The Radetzky March, composed by Johann Strauss I, is the familiar finale during which audiences traditionally clap along with the beat.

The concert was first held on January 1, 1939, and became an important annual broadcast. Today it reaches audiences around the world through radio and television, making the event one of the most widely recognized classical-music celebrations associated with New Year's Day.

The Radetzky March is not the concert's only recurring piece. “The Blue Danube” is also strongly associated with the program and is usually played before the finale. Confusing those two works reverses their customary positions in the closing sequence.