This 11:26 minute clip was heard on Science Friday on National Public Radio on 5/27/2016. Vocologists John Nix and MacKenzie Parrott provide explanations of the use of vocal fry in pop music, and other genres of singing. This clip includes excerpts of The Star Spangled Banner sung with and without vocal fry. Parrots provides results of the study regarding listener preferences. Scientific explanation of the laryngeal mechanism for vocal fry is minimal.