Broadway director and choreographer Susan Stroman makes her Met debut with a lavish new staging of Franz Lehár’s effervescent operetta. Soprano Renée Fleming adds a new character to her Met repertory as Hanna, the widowed millionairess. Sir Andrew Davis conducts a stellar cast that includes baritone Nathan Gunn as Danilo; tenor Alek Shrader as Camille de Rosillon; and baritone Sir Thomas Allen as Baron Zeta. Broadway star Kelli O’Hara makes her Met debut as Zeta’s wife, Valencienne. The operetta is performed in English. Mezzo-soprano Joyce DiDonato hosts.