Pop princess Katy Perry has revealed that the moment she found out her husband Russell Brand had filed for divorce she had a physical reaction that shook her up.

In her new concert movie, 'Part Of Me 3D', the singer explained that she was about to get on stage to perform for a large audience when she heard that the British funnyman had handed in divorce papers and started to convulse from the shock:

"I was convulsing a little bit ... I still have to find the balance, I had to separate my personal from my professional. As an entertainer, I knew what my job was and I shouldn't take it out on my audience, they've always been there for me."

Earlier today (July 2), Perry tweeted a message to let her 22.4 million followers know that she had landed in London to promote the film in the UK:

"LONDON! ARE YOU READY TO #KP3D?! I'M HEEEEEERE! (and I need a shower after 30 hours of traveling)"