Freuet euch des Lebens (Enjoy Life), Op. 340, is a Viennese waltz composed by Johann Strauss II. It was written for the Vienna Musikverein, and premiered at the new Musikverein building in Vienna in 1870.
In the opening movement of his Ninth Symphony, Gustav Mahler quotes from this waltz.
The waltz was played at these Vienna New Year's Concerts: