That face is the face of someone who's just been woken up and has a very sensitive stomach.
To promote the release of her latest album 'Witness', Katy Perry spent the past weekend locked away in a house 'Big Brother' style and filled her days with all sorts of guests and activities ranging from meditation classes, dinner with celebs like Sia and Caitlyn Jenner, and surprise wake up calls from Left Shark amongst others.
Yesterday's visitor was James Corden who, after surprising Perry in her bedroom as a walking alarm clock, hosted a game of 'Spill Your Guts or Fill Your Guts' from his late night talk show just for Katy to try out.
And it turns out Perry is the perfect person to play this with because she was set to vomit before the game even began.
