Perry and Lady Gaga will go head-to-head for four Grammy Awards next year
In pictures: Rihanna, Katy Perry and Wiz Khalifa appeared at California's desert festival
Thu 21 Jul, AT 15:39
Provocative singer leads the nominee list, but can award recognition change the pin-up’s image?
Fri 20 May, AT 12:54
Backstage rider for 26-year-old chanteuse includes ‘absolutely no carnations’
Thu 17 Mar, AT 15:41
Messi, Beckham and Katy Perry star in glossy new advert (with video)