The 34-year-old musician produced current single "Swish Swish" featuring Nicki Minaj from Perry's eagerly-anticipated fifth record.
He said they came to work together because the "Chained to the Rhythm" singer is a fan of his electronic dance sound, reported Contactmusic.
Duke - whose real name is Adam George Dyment - said, "There are not many more recognisable faces in the world as Katy Perry, but at the same time being famous doesn't necessarily make someone a great act.
"But working on this project it was great seeing what her vision was for the album and being able to help with that. I am genuinely excited for the music.
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