
"
Puttin' on the Ritz" is a
popular song written and published in
1929 by
Irving Berlin and introduced by
Harry Richman in the musical film
Puttin' on the Ritz (1930). The title derives from the
slang expression "putting on the Ritz", meaning to dress very fashionably. The expression was inspired by the swanky
Ritz Hotel. The song gives
Gary Cooper as an example of someone who puts on the Ritz (
Wikipedia).