Happy End is a three-act musical comedy by Kurt Weill, Elisabeth Hauptmann, and Bertolt Brecht which first opened in Berlin at the Theater am Schiffbauerdamm on September 2, 1929.

After the success of Weill and Brecht's previous collaboration, The Threepenny Opera, the duo devised this musical, written by Hauptmann under the pseudonym of Dorothy Lane.

There were reports that cast member Helene Weigel (Brecht's wife) read from a Communist pamphlet on stage, and the production was panned by the German press and closed two days later.

A 1984 production by Washington D.C.'s Arena Stage was televised as part of the short-lived "America's Musical Theater" series on PBS.

[6] A production at the Pacific Resident Theatre in 2005 garnered a Los Angeles Drama Critics Circle Award for Best Revival of 2005.

A 2006 production by San Francisco's American Conservatory Theater used the English adaptation by Michael Feingold, and also had a CD cast recording.

Despite the poor initial reception of the play, several musical numbers have seen continued popularity, including "Surabaya Johnny", sung by Lillian Holiday and "Bilbao Song".

She turns out to be The Fly in disguise, and tells them a big bank job is set for Christmas Eve, two days away.

The Fly leaves and the gang plots to frame Bill for killing the pharmacist they were planning to shake down.

Sister Lilian (or Lillian) Holiday brings the band inside the bar ("March Ahead"), and begins to try to convert the gang.

The service begins ("Brother Give Yourself a Shove") and Sisters Jane and Mary, who are left to deliver Lilian's sermon, fail miserably.

Sam from the gang is there and tells him Lilian is gone as Hannibal sings the final hymn ("In Our Childhood's Bright Endeavor").

"Take care of him tonight and leave worrying about the money till tomorrow" ("The Ballad of the Lily of Hell").

The Fly steps forward and says the two groups should unite to fight for the poor against the injustices of the rich ("Epilogue: Hosanna Rockefeller").

A drunken Santa Claus appears at an upstairs window and the whole group reprise "The Bilbao Song".

Prologue – The Company Bill's Beer Hall, December 22 The Salvation Army Mission, Canal Street, and the Beer Hall, December 23 Scene 1: The Beer Hall, December 24 Scene 2: The Mission, later that night The phrase "robbing a bank is no crime compared to owning one" comes from this play, and Brecht subsequently added it to publication revisions of the earlier Threepenny Opera, although it did not originally appear in the first production.