Kate Moss 'had to' speak out for Johnny Depp

Crucially, the 48-year-old model testified briefly

an ex-partner defamation lawsuit against ex-wife Amber Heard

that the 'Pirates of the Caribbean' actor pushed down

Lauren Laverne on BBC Radio 4's 'Discs on a Desert Island

she said: "I know the truth about Johnny.

I know he never threw me down the stairs.

Kate was also racially abused in a Paris bar in 2011.