Louisiana Purchase is a musical with music and lyrics by Irving Berlin and book by Morrie Ryskind based on a story by B. G. DeSylva. Set in New Orleans, the musical lightly satirises Louisiana Governor Huey Long and his control over Louisiana politics. An honest U.S. senator travels to Louisiana to investigate corruption in the Louisiana Purchase Company; the company's lawyer attempts to divert him via the attentions of two beautiful women, but the senator maintains his integrity and ends up marrying one of them. In 1941 it was adapted for the film Louisiana Purchase directed by Irving Cummings.

Irving Berlin was an American composer and lyricist. His music forms a large part of the Great American Songbook. Berlin received numerous honors including an Academy Award, a Grammy Award, and a Tony Award. He also received the Presidential Medal of Freedom from President Gerald R. Ford in 1977. Broadcast journalist Walter Cronkite stated he "helped write the story of this country, capturing the best of who we are and the dreams that shape our lives".