Joan Collins and Stephanie Beacham, the diva stars of Dynasty, will appear together on screen again, more than 20 years after their bitter rivalry made them household names.
The pair will reprise their highly-strung and dramatic characters for the first time since the actresses starred in the show.
Miss Collins, 78, and Miss Beacham, 64, will go head to head for a TV advert for the chocolate bar Snickers.
Dressed in glamorous gowns and dripping with jewellery, the two will play out their famous diva behaviour in the dressing room of a football club.
Miss Collins, who has since made her name as a novelist, will storm into the changing room and accuse a team-mate of stealing her deodorant.
After taking the chocolate bar, she transforms into a footballer with the new slogan: "You're not you when you're hungry."
Miss Beacham, who took part in the BBC's Strictly Come Dancing in 2007, will also throw a tantrum about being substituted during a match.
Miss Collins said it was her suggestion to approach her on-screen arch-enemy to take part in the advert, replacing the A-Team's Mr T as the face of the chocolate bar.
"When they said, 'we need a similar lady to come on and be another diva," I said, 'well, there's only one choice – Stephanie'," she said, according to the Daily Mail.
"I mean, we had so much fun on Dynasty."