Perry: Divorce made me 'convulse' a little bit

Katy Perry "convulsed" when she found out Russell Brand had filed for divorce.

The 'Teenage Dream' singer discovered her 14-month marriage was coming to an end last December, just as she was about to go on the stage to perform on her tour, and while she admits she had to "separate" herself from the problem because she was a "professional", she still struggled to deal with the turmoil in her personal life.