We are accustomed to seeing Katy Perry in her colorful latex costumes on stage, singing upbeat tracks, but this time Katy shows a different side. Except for her pink colored hair, the famous singer looked simple wearing a white top and black suit pants.

Perry performed the song "The One That Got Away" from her "Teenage Dream" album. She was playing her guitar together on stage with a few guitarist and back up singers.

"UK! I'm on X Factor tonight! I'll be singing one of my favorite songs... Tune in! It starts @ 8PM!" the famous pop singer tweeted before she performed on stage. "Today has been the best day," she then tweeted again after the show.

Earlier this month, the singer was caught filming for a new music video for "The One That Got Away" where she was made up to look like an old woman. After her performance in the X Factor stage Katy told host Dermot O'Leary that she completed her 95th show for her "California Dream" tour at the O2 arena in London.

Recently last week, Perry also announced that her new fragrance "Meow" will be out in December. This is the "sister perfume" from her first fragrance which she named "Purr."

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