On the Beautiful Blue Danube, Op. 314 is a waltz composed by Johann Strauss II in 1867 for the Vienna Men's Singing Society. It was written for four-part choir with orchestra or piano. The words were written by Josef Weyl. It was first performed on 15 February 1867 by the Vienna Men's Singing Society and the orchestra of the Forty-Second Infantry Regiment directed by Rudolph Weinwurm. It was performed without voices on March 4 and again on March 10 in the same format at a benefit for Strauss's brothers. It was a sensation when performed at the Paris Exposition the same year. This performance marked the beginning of Strauss's international reputation. The waltz was published in 1867 by Carl Anton Spina. 