"It almost seems like a blatant copy. I'm not suggesting it is, but if this turns out to be true, it's almost pretty brazen," said Kenney, who specializes in intellectual property, including copyright law, based in Falls Church, Va.
Kenney said the listing of the elements in the complaint were "pretty specific" and "fact-heavy," whereas both tests are difficult to meet in other copyright cases.
"The greater the number the elements of similarity, the easier it will be to show infringement," he said.
The suit claims that a statistical analysis of a 52-song sample of the Billboard "Hot 100" between 2009 to 2011 show "there is essentially a zero probability for the number of points of congruence between two versions" of the song, "absent copying."