Famous people like Katy Perry, Kathie Lee and Kim Kardashian have more incentive than the rest of us to have great Halloween costumes because their get-ups are going to be photographed and dissected by millions. Here are some of the best photos of celebrities in costumes from this weekend's celebrations. Let us know what you think.
Katy Perry's 'Last Friday Night' becomes 'One Stormy Night' for this Halloween parody that includes all of your favorite horror movie villains.
It's easy to understand why the precocious British tot in this video would have mixed feelings about Katy Perry. We go back and forth on her music too.
This Katy Perry fan was spotted singing and dancing along with the pop star's mega-hit 'California Gurls' at 8am on a Jersey City bus. Suffice to say, he is a morning person.
Pop diva Katy Perry had a surprise for those attending her Nokia Theater concert in LA last week: a duet with special guest Rebecca Black. It was a Friday night, of course.