Bad news for Amber Heard as Kate Moss is set to appear at Depp defamation trial: Supermodel who dated Johnny from 1994-97 will take stand on Wednesday after actress namedropped her during case. Kate Moss will reportedly testify in Johnny Depp’s $100 million defamation trial after Amber Heard namedropped her last week Experts say that Heard’s testimony on May 5, …