Lisztomania or Liszt fever was the intense fan frenzy directed toward Hungarian composer Franz Liszt during his performances. This frenzy first occurred in Berlin in 1841 and the term was later coined by Heinrich Heine in a feuilleton he wrote on 25 April 1844, discussing the 1844 Parisian concert season. Lisztomania was characterized by intense levels of hysteria demonstrated by fans, akin to the treatment of some celebrity musicians starting in the second half of the 20th century – but in a time not known for such musical excitement.