Turns out it wasn't even her dancing and it wasn't multiple dancers...it was just one!!!!
Meet the Dancer Behind Katy Perry's Grammy Shadow
Andrea Dobbs sat still for a few minutes to chat about working with Katy and staying anonymous during music's biggest night
http://www.fuse.tv/2015/02/katy-perr...ncer-interview
+ a cute interview:
Did you get to meet Katy?
She came toward the end of the day and saw what we had done in the editing room. She asked questions and told us what she thought. She did some of her stuff on the green screen also. So it was her shadow at the beginning and the end and I was the person in the middle.
What did Katy think when she finally saw it?
She loved it. I think it was just different for her, from what she did at the Super Bowl. She was excited about it. She only had good things to say about it when I was with her, and thought all the work that Cherice did was beautiful.
That’s encouraging! What was it like to work with her?
I think she's just real. The way I've seen her in videos and interviews, is the same on and off. It's very refreshing, especially for L.A. She's exactly how I thought she would be. She introduced herself to me and made a funny joke about how long my arms and my neck were. It was easy to be around her. The mouth speaks what the heart is full of, and she was full of gratitude and kind words.
More at FUSE: http://www.fuse.tv/2015/02/katy-perr...ncer-interview