After decades in the fashion industry, Kate had some wise words for the young model and didn't hesitate before giving her some guidance.
During a chat with Stylist, Cara - who has already fronted plenty of her own campaigns - revealed Mossy’s advice.
"Just to be myself and not to give a s**t what other people say,” she replied, when asked what Kate had told her. “And stick up for yourself.”
The 22-year-old model had nothing but good things to say about Kate, adding: "She's an extremely strong woman, and she doesn't take s**t from anyone, which is great.
“She very much sticks up for something she believes in. It's very inspirational."
In recent years, Cara’s modelling career has gone from strength-to-strength and she’s tried her hand at acting too, starring in a Sky Arts drama alongside veteran actress Sylvia Syms.