As often happens in the hip-hop world, two rappers became embroiled in a dispute over who owned the rights to a song that utilized a popular phrase. And it took the musical ear of the 5th U.S. Circuit Court of Appeals to settle the matter.
Positive Black Talk Inc., et al. v. Cash Money Records, et al. plunged the conservative appellate court into the world of booming bass lines and popular street slang.
Chief Judge Carolyn Dineen King, who wrote the opinion, boiled the case down to a dispute between Louisiana rappers Juvenile and D.J. Jubilee over who owned the rights to a song "that included the poetic four-word phrase 'back that ass up.'"
The court found no infringement. Details here from Texas Lawyer via Law.com.