> There is a very strong music copyright system in the US and in the Tom Waits case they had both music and voice impersonation.
The article explicitly mentions the Tom Waits case did not include a copyright component as he didn't own the copyright, and Frito-Lay probably obtained synch rights from the copyright owner.
Tom Waits won the suit without invoking copyright violations - read into that what you may.
Part of being a good lawyer is sometimes "well, this didn't work in 1992 (or whatever) but it might fly now. Let's try it, worst case is X". And, as always, the devil is in the details.
The article explicitly mentions the Tom Waits case did not include a copyright component as he didn't own the copyright, and Frito-Lay probably obtained synch rights from the copyright owner.
Tom Waits won the suit without invoking copyright violations - read into that what you may.