Video: Katy Perry Has Fans Fainting Like MJ Fans?

13 seconds into the "commercial" for Katy Perry's "California Dreams Tour 2011" we see a fan having to be taken away over the barricade. Ala Michael Jackson fans who were fainting back in the day. Interesting.

Also in the clip, Katy takes us behind the scenes of her wardrobe leading up to her appearance on stage.

So the doc has a question: Do you see yourself fainting at a Katy Perry concert?-Dr.FB

Diagnosis: Not For The Faint