Creative director Riccardo Tisci announced the unlikely news on social media today, tweeting: "So proud and honoured to introduce my new ultimate icon: Donatella Versace #FW15 #Givenchy #Family #Campaign." The rival designers are actually firm friends, with Donatella Versace tweeting back, "For my talented friend Riccardo. Together we break fashion boundaries today!"

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Crossing over: Donatella Versace stars in Givenchy’s A/W ’15 campaign

The A/W '15 campaign was styled by Carine Roitfeld and shot by Mert & Marcus, and shows the pair in profile, facing opposite directions and standing side by side. Time will tell whether Versace feels compelled to return the favour in her next campaign.  

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