"The Lady Is a Tramp" is a show tune from the 1937 Rodgers and Hart musical Babes in Arms, in which it was introduced by former child star Mitzi Green.
This song is a spoof of New York high society and its strict etiquette (the first line of the verse is "I get too hungry for dinner at eight...") and phony social pretensions.
Her performance appeared in the film Words and Music, a fictionalized biography of the partnership of Rodgers and Hart.
He sang the song with new lyrics as "The Gentleman Is a Champ" at tribute events for Spiro Agnew and Orson Welles, also recording a new version under the pseudonym Frankie Alvert titled "Maureen Is a Champ" for Ringo Starr's wife Maureen Starkey; never commercially released.
[6][7] The video shows Bennett and Gaga singing "The Lady Is a Tramp" together in a studio in front of music stands.