POPSUGAR Celebrity Katy Perry Slide Picture of Katy Perry at Radio One in London Air Time by Celebrity 6/24/10 0 Shares Like us on Facebook Sign up for our daily newsletter > Follow us on Pinterest Katy Perry headed into Radio One studios in London on Thursday. Image Source: Bauer-Griffin Online Read More Katy PerryHot Katy Perry 8 Celebrity Costumes That Can Only Exist on Halloween Night Katy Perry Gets Groped on Stage by an Overzealous Fan Look Back at All of Last Year's Memorable Celebrity Halloween Costumes! Katy Perry Is Living "That Bucket List Lyfe" at Machu Picchu POPSUGAR, the #1 independent media and technology company for women. Where more than 75 million women go for original, inspirational content that feeds their passions and interests. Be in the Know With OurCelebrity and Entertainment Newsletter Personalize A-Listers TV Movies Young Hollywood Sign up with facebook or By signing up, I agree to the Terms and to receive emails from POPSUGAR.