It's not an impression, isn't a close match (and is a closer match to another actress!), isn't performing a song (or similar) in the same vocal style, isn't exp

It's not an impression, isn't a close match (and is a closer match to another actress!), isn't performing a song (or similar) in the same vocal style, isn't explicitly designed to parody the artist, wasn't advertised in a way that trades on the publicity rights of the artist, the voice of an actress is a smaller portion of their public image than the voice and style of a singer (a large factor considered in right of publicity cases), and a particular vocal performance in one film is much less protectable under right of publicity than a unique vocal style of a singer. The Waits case is highly dissimilar, IMO. But tbf this isn't an area of law I'm expert in, and my knowledge of Right of Publicity law is mostly from law school, which was... a while back.