Supermodel Kate Moss and hairdresser James Brown have been best friends since they were teenagers and a few years ago became more than that when they decided to become business partners and set up a line of haircare products and a swanky London salon.

However, apparently they’re now fighting and their friendship is in big trouble, according to the Daily Mail. It is rumoured that Kate is upset about how much airtime she got on James’ Supermodel Salon TV documentary.

When the Mail spoke with James Brown at a Mulberry Made For Apple party, he said “She maintains her hair herself nowadays.”

Uh oh – could there be trouble in bestie paradise?