Notoriously-private Moss, 48, put aside her infamous hatred of interviews in order to rush to Depp's aid in court today, taking to the stand on his behalf and delivering a sensational blow to his ex-wife Heard's case by squashing the actress' claim that Depp once pushed his supermodel ex down a flight of stairs.
Now, body language expert Judi James has analyzed the subtle movements in Moss' face and expression, which she said implied that the star has nothing but warm feelings towards her former beau, despite her previously claiming that their breakup left her heartbroken for 'years'.
On the other hand, James claimed that Heard's uncomfortable look throughout the testimony suggested that she felt 'denial or irrelevance.
Kate gives the impression of being polite, smiling sweetly and apologetically when speaking over the lawyer and being interrupted by him.'
During Heard's testimony earlier this month, the actress alleged that Depp once shoved Moss down a flight of stairs - but according to the British entrepreneur, the Hollywood heartthrob actually helped her after she accidentally slipped.
Heard made the claim while discussing an argument that she allegedly had with Depp at the top of a staircase, when she said her sister, Whitney Heard, stepped in between them.
'She threw herself in the line of fire. She was trying to get Johnny to stop. Her back was to the staircase, and Johnny swings at her. I don’t hesitate and wait - I instantly think of Kate Moss and stairs,' she said. 'And I swung at him.'
Moss said during her testimony that Depp never 'pushed her or threw her down any stairs,' in fact, she said that he tended to her after she tripped during a trip they took to Jamaica together.
We were leaving the room and Johnny left the room before I did. There had been a rainstorm and as I left the room I slid down the stairs,' she recalled, while testifying via video link.
I hurt my back, and I screamed because I didn't know what had happened.'
She said Depp came running back to help her, adding that he 'carried her to her room and got her medical attention.'
When asked directly by Depp's team if the Pirates of the Caribbean star ever pushed her down the stairs, Moss replied, 'No.'
'No, he never pushed me, kicked me or threw me down any stairs,' she told the court.
'There’s nobody that’s ever really been able to take care of me. Johnny did for a bit,' she said in the interview, which came out in 2012.
'I believed what he said. Like if I said, "What do I do?" he’d tell me. And that’s what I missed when I left.
'I really lost that gauge of somebody I could trust. Nightmare. Years and years of crying. Oh, the tears!'