The `Firework` singer - who is known for her outrageous on-stage outfits - is a big admirer of the designer`s work and after wearing some of his creations to recent events, she is keen for him to create some costumes for her.
Speaking about a Mrs. Clause dress she wore at the recent Jingle Ball concert series in Los Angeles, Miami, and New York, Katy said: "ToddThomas designed it - he also did the Victoria`s Secret runway costumes. I performed and met Todd there. I`ve fallen in love with his designs and I`m hoping he does one of my tourcostumes. He did my snowman and he did this toy soldier I wore last night."
While Katywants crazy outfits for her tour next year, she recently revealed she knows there is an "expiration date" on her outrageous fashion choices.
She said: "They have an expiration date and that`s why I`m wearing them now at 25. I`m such a sucker for a theme, so if I go somewhere like Las Vegas, I`ll dress like Vegas! Or if it`s Christmas time, I`ll dress like Mrs. Claus!
"I`ve always been girly - even though I was a tomboy. My mother said when I was a kid, I was changing for breakfast, lunch and dinner. I don`t make it a big deal, I just do it."