Sadie Frost blasts Sienna Miller on Twitter over daughter's haircut

Celebrity feud alert! Sadie Frost is not happy with Sienna Miller, and has told the world on Twitter!

While life in the Sienna Miller and Jude Law camp seemed to be all rosy, Sadie Frost isn't so impressed by her ex-husband's girlfriend, as has let the whole world know on Twitter!

We see a feud brewing...!

While Frost was away at the Isle of Wight Festival with her sons, she left daughter Iris with Jude and Sienna for the weekend, but was shocked to return and find the nine-year-old had been on a trip to the hairdressers.

Much to Sadie's dismay, Sienna had taken Iris to have her hair chopped from a long bob into a short pixie crop. Taking to her Twitter account to vent, she posted: 'I think ya should get ya own child and then cut their hair!'

A friend of Frost's snitched to The Sun: 'Sadie had a great time at the festival but it was all forgotten when she saw Iris's hair. It's not that the style doesn't look nice - it does - but that it was done without her permission.

'I'm sure Sienna was just trying to be nice. But Sadie doesn't want Sienna playing mum to her kids.'

Uh oh, sounds like Sienna is in trouble...

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SIENNA & JUDE: RELATIONSHIP IN PICS