Only Katy Perry can ruin a birthday and still make it a fun party!
That’s exactly what she did in her latest video/movie for “Birthday” her 4th single from PRISM.
She went undercover as a 90 year-old dancer, a Bat mitzva entertainer, an animal trainer, a princess and a clown.
The party guests had no idea Katy was actually in disguise until they got enough footage, then she told the crowd she was actually Katy Perry.
Watch the video and make sure to eat your cake while doing so!