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"Express Yourself" is a song by American singer Madonna from her fourth studio album Like a Prayer (1989).

It was released as the second single from the album on May 9, 1989, by the Sire label.

The song was included on the greatest hits albums The Immaculate Collection (1990) and Celebration (2009).

"Express Yourself" was the first song that Madonna and producer Stephen Bray collaborated on for Like a Prayer.

Written and produced by them, the song was a tribute to American funk and soul band Sly and the Family Stone.

The main inspiration behind the song is female empowerment, urging women never to go for second-best and to always express their inner feelings.

In economics, utility is a measure of preferences over some set of goods (including services: something that satisfies human wants); it represents satisfaction experienced by the consumer of a good.

The concept is an important underpinning of rational choice theory in economics and game theory: since one cannot directly measure benefit, satisfaction or happiness from a good or service, economists instead have devised ways of representing and measuring utility in terms of measurable economic choices.

Economists have attempted to perfect highly abstract methods of comparing utilities by observing and calculating economic choices; in the simplest sense, economists consider utility to be revealed in people's willingness to pay different amounts for different goods.