A bootleg recording is an audio or video recording of a performance not officially released by the artist or any other legal authority. Making and distributing such recordings is known as bootlegging.
Who's Zoo compiled early singles and B-sides by the Who, which had not been commercially released in the U.S. Like several Trademark of Quality bootlegs, it featured cover artwork by William Stout.
Kum Back, a collection of recordings by the Beatles in early 1969, appeared before the official release of Let It Be.
The Pink Floyd bootleg The Dark Side of the Moo collected early singles and B-sides. When released, it was the only way to hear the studio version of "Astronomy Domine" in the U.S., as it was not included on the U.S. issue of The Piper at the Gates of Dawn
The Black Album by Prince was withdrawn from sale shortly before its official release date in December 1987, becoming a popular bootleg.
Elvis' Greatest Shit is a bootleg recording of Elvis Presley, released in July 1982. It assembles a number of studio recordings, live recordings, and outtakes intended to represent the worst recording
Bootleg recording
…the Star-Club in Hamburg, which was bootlegged as The Beatles vs. the Third Reich (a parody of the early US album The Beatles vs. the Four Seasons), or Elvis' Greatest Shit, a collection of the least successful of Elvis Presley's recordings, mostly from film soundtracks. Bootleg collectors in this era generally relied on…