Perry performed hits including "Roar" and "Firework" at Sunday's One 805 Kick Ash Bash fundraiser at the Bella Vista Polo club in Summerland, California on Sunday, February 25, 2018.
Former 'American Idol' and 'Smash' star Katharine McPhee grabbed headlines last fall when she was seen making out in public with 'Smash' director Michael Morris. Both McPhee and Morris were married to other people at the time. What's the latest?