Don’t look for Jennifer Aniston to become the best of Friends with Kimberly Stewart anytime in the near future. The thirty-nine year old actress had the British socialite, and daughter of rock star Rod Stewart, ejected from a John Mayer concert at the Hard Rock Calling in London’s Hyde Park last week. Jennifer became livid when Kimberly began getting a little too cozy with the headliner.

“She has fallen head over heels for John, but she’s scared it will all go wrong again….Another woman stole her man before when Angelina Jolie started dating Brad Pitt – she couldn’t bear it to happen again,” spywitness for the Daily Mail tattle.

The Brit tabs claim Jennifer demanded Kimberly hit the road after spying her gleefully snapping photos of John on-stage.

“She had been told twice by security that she would be removed but she stood there bold as brass…Jennifer was on the opposite side of the stage and John felt like piggy-in-the-middle…He saw the tension and told his bouncers to get rid of her at all costs.”

“Kim was pulled off the stage and escorted through the Hard Rock VIP tent with a face like thunder, shouting: ‘Why doesn’t he want me here? Is this because of her?’ “She totally embarrassed herself, but Jen looked relieved.”