Most females reading this would already be aware of this fact, but for anyone who may not be...

Short pants that come just below the knee are, these days, referred to as "capris," as in 'capri length.' Back in the 1950s, when they were more common, they were referred to as "pedal pushers."

Aussie actress Olivia Newton John stars as "Sandy" in the 1978 American film Grease. This film was immensely popular in the United States, and I have no doubt that Madonna must have seen it, or at least photos taken from it.

These shots of Newton John as Sandy were taken in the big finale scene where Sandy dances with the character played by John Travolta.

Madonna 1985. Photo shoot for Rolling Stone magazine

Top: Madonna at American Music Awards show, 1985

Bottom: Madonna in Pepsi commerical, 1989

Jane Russell from the "Ain't There Anyone Here For Love?" scene in 1953's Gentlemen Prefer Blondes

Marilyn Monroe as Vicky Hoffman/Vicky Parker in the 1954 film There's No Business Like Show Business

Madonna, 1986. Papa Don't Preach music video