The 30-year-old singer plays the flirty feline Bombalurina in the live-action adaptation of Andrew Lloyd Webber's iconic stage musical and although she only had to stay on set for three days, she stayed much longer as she had "much more fun" than other cast members.
Taylor said: "I had to go to cat school to learn how to move and behave. I was meant to go for three days and I stayed for four months! I had much more fun than anyone else."
The upcoming film - which also stars the likes of Idris Elba, James Corden, Rebel Wilson, Dame Judi Dench and Jennifer Hudson - follows a tribe of cats called the Jellicles and Idris, 47, previously insisted that Taylor was simply "great" whilst they were filming and made the transition from music to movies seamlessly.
He said: "Taylor was great, her and I had a lot of work to do together, and she was amazing. She worked hard and was just happy to be there."