United Kingdom, July 16 -- Gwyneth Paltrow allegedly ended her friendship with Madonna following an unexpected dinner on vacation.

The Goop founder was on holiday on an unnamed island with then-husband Chris Martin when the 'Material Girl' singer unexpectedly "showed up", and insisted the couple join her for a group meal, only for the pair to be left horrified when she allegedly "went off" on her eldest daughter Lourdes, now 28.

In an excerpt from Amy Odell's upcoming book Gwyneth: The Biography obtained by People magazine, the author wrote: "[A few years after son Moses birth], Gwyneth's friendship with longtime pal Madonna crumbled.

"Their relationship reached a breaking point when Madonna showed up to an island where Gwyneth and Mar...