title: Express Yourself (Madonna song)
context: "Express Yourself" is a song by American singer-songwriter 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 Sire Records. The song was included on the greatest hits compilation 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.
question: When did Madonna release the song "Express Yourself"?
answers: 1989