This case involves an advertising agency in New York that was doing a campaign for a snack food maker. The advertising agency knew of a song by a famous singer and decided to make a commercial using a word-play of the song. The song was by a well-known singer who had recorded many albums and was known for his distinctive, deep, bluesy voice. The advertising agency looked for a musician who could mimic the singer’s vocal style to do the commercial. The advertising agency found a professional musician who had experience doing imitations of the singer and commissioned a voice recording. This musician had perfected an imitation of the singer’s voice. The agency made the commercial with the musician imitating the singer’s voice but was afraid there would be legal repercussions because the commercial was too close to the singer’s real voice. The Vice-President of the advertising agency consulted the agency’s attorney about whether there would be legal problems if they used the commercial. The attorney told him that there was a good chance of a lawsuit because there were several recent cases that allowed musicians and celebrities to protect their distinctive voices. The advertising agency made an alternate version of the commercial using another singer but eventually decided to use the commercial with the musician imitating the famous singer’s voice. The singer filed a lawsuit for misappropriation against the advertising agency. An expert in audio forensics/ voice identification was sought to opine on the issue.