Catfight: Rita Ora and Cara Delevingne

Jul 17, 2013 at 8:29 a.m. ET

Celebrity best friends and style icons Rita Ora and Cara Delevingne have recently fallen out because one of them is rumored to be an embarrassment. Ouch…

Rita Ora dumps best friend Cara Delevingne

Rita Ora has reportedly been forced to dump her former best friend Cara Delevingne after she embarrassed her at DKNY's fashion party last month. The supermodel grabbed the singer's microphone from her hands and started to grind up on her from behind.

A source told the Daily Mirror newspaper: ''There's a lot of hurt on both sides but Rita's been working towards her singing career and carefully crafting her image for four years and it was all in danger of being a joke after that shabby performance."

Delevingne is known for her outrageous and fun personality, but it seems that may be threatening to the image of her former best friend and "R.I.P." singer Ora. In fear of tarnishing her image, Ora will need to distance herself from the supermodel. ''Rita's been advised to distance herself from the model," the source said.

Rumors sparked that the pair's friendship was becoming turbulent when Delevingne reportedly refused to support Ora at London's Wireless Festival. She chose to rather spend $450,000 on a yacht in the French Riviera instead, with Rita's rival Rihanna.

Ora, who is dating legendary DJ Calvin Harris — after her notorious relationship with Rob Kardashian ended — has even hinted that her former supermodel best friend wasn't actually a real friend.

Speaking in this month's GQ, she said: ''To me, I have my friends who I've known my whole life, and I can count them on one hand. They're people I went to school with. Everyone else I meet from that point on, if they happen to become a friend, that's incredible — come and join the family — but if not..."

Doesn't seem like there will be any reconciliation here any time soon then?

Photo credit: Spiller/