Once one of the world’s most glamorous showbiz couples, the singer and the Spanish football ace are now engaged in an extra­ordinarily bitter split.

Ever since Gerard ditched Shakira for the then 22-year-old Clara Chia Marti this summer, no act of revenge has been considered too petty — with a brutal diss track, savage jibes and even a row over a bizarre witch doll playing out in public.

Last week, 45-year-old Shakira dropped a new track which takes a swipe at love rival Clara’s age with the lyrics: “I’m worth two 22s. You traded a Ferrari for a Twingo, you traded a Rolex for a Casio.”

Gerard, 35, responded by turning up to work in an £8,000 Renault Twingo this weekend and boasting his new seven-a-side project the King’s League had landed a sponsorship deal with Casio — adding that the cheaper watch would “last a lifetime”.