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United States

Parodies are protected under the fair use doctrine of United States copyright law, but the defense is more successful if the usage of an existing copyrighted work is transformative in nature, such as being a critique or commentary upon it.

In Campbell v. Acuff-Rose Music, Inc., the Supreme Court ruled that a rap parody of " Oh, Pretty Woman " by 2 Live Crew was fair use, as the parody was a distinctive, transformative work designed to ridicule the original song, and that "even if 2 Live Crew's copying of the original's first line of lyrics and characteristic opening bass riff may be said to go to the original's 'heart,' that heart is what most readily conjures up the song for parody, and it is the heart at which parody takes aim."

In 2001, the Eleventh Circuit Court of Appeals, in Suntrust v. Houghton Mifflin, upheld the right of Alice Randall to publish a parody of Gone with the Wind called The Wind Done Gone, which told the same story from the point of view of Scarlett O'Hara 's slaves, who were glad to be rid of her.

In 2007, the Ninth Circuit Court of Appeals denied a fair use defense in the Dr. Seuss Enterprises v. Penguin Books case. Citing the Campbell v. Acuff-Rose decision, they found that a satire of the O.J. Simpson murder trial and parody of The Cat in the Hat had infringed upon the children's book because it did not provide a commentary function upon that work.