Copyright is described as a form of protection of intellectual property provided by the laws of the United States to authors of “original works of authorship” that are “fixed in a tangible medium of expression.”
An example of when copyright would be violated is Vanilla Ice versus David Bowie and Freddie Mercury case. Vanilla Ice hit song, in 1991 Ice Ice Baby was sampled from the song Under Pressure by David Bowie and Queen. However, David Bowie and Queen was not credited by the song, therefore, is describeVanilla