Jason Kennedy - Celebrities attend 6th Annual "Night of Generosity" Gala at The Beverly Wilshire Hotel. at The Beverly Wilshire Hotel - Los Angeles, California, United States - Saturday 6th December 2014
E! stars arrive at the network's Upfront Presentation in New York. They include 'Keeping Up With the Kardashians' stars Kim Kardashian, her mother Kris Jenner, her sister Kourtney Kardashian and Kourtney's partner Scott Disick as well as Olympic Gold medal winning swimmer Ryan Lochte and 'Chelsea Lately' host Chelsea Handler.
Perry appeared on James Corden's 'The Late Late Show' on Monday and addressed her long-standing rivalry with Swift.