“In both of those cases, the sound-alikes were performing songs that the singers had made famous, so people were likely to assume that the artists were the ones singing and had endorsed the products,” said Mark Lemley, director of Stanford Program in Law, Science and Technology.
The Johansson case is less clear-cut than the earlier cases, though the effort to imitate Johansson’s voice from “Her,” together with Altman’s repeated efforts to hire her and a tweet by him referencing the film, make for “a pretty strong case for Johansson,” said Lemley.