Kate Moss briefly testified in Johnny Depp's defamation trial against his ex, Amber Heard, on Wednesday. The 48-year-old model appeared via video link as a rebuttal witness for Depp's team, after Heard brought up Moss' name during her court testimony earlier this month. Moss denied any allegation that Depp pushed her down the stairs during the course of their relationship, specifically, during a stay with the actor at a resort in Jamaica.