MTV.co.uk News — Chris Brown's on-off girlfriend also talks her "battle" with Rihanna and is Keira Knightley competition for Katy Perry? Find out here... more info

MTV.co.uk News — Singer could be adding musical theatre to her CV... more info

NME — The singer told the director in charge of the production she's interested in playing lead character Cher more info

MTV.co.uk News — The museum are exhibiting Primark Jeans and Katy Perry Eyelashes… more info

TMZ — ON TODAY'S SHOW Brazilian Supermodels Weep After Humiliating World Cup Loss Cuba Gooding Jr. Man-Shames Prince Fielder's Naked Pictorial Usher: I'd Call Lebron To Come to Cavs, So Why Hasn't He? Gronk At Katy Perry, Continues 'She-Pop' Concert… ... more info

TMZ — Rob Gronkowski's obsession with "she-pop" concerts continues ... now, the New England Patriots tight end hit up a Katy Perry concert n Connecticut ... and TMZ Sports has the footage. A mohawk-sportin Gronk stood head and shoulders above the… more info

MTV.co.uk News — Check out K-Pez going ninja in her new animated trailer right here... more info

MTV.co.uk News — Star wears eye-searing tie-dye outfit as she poses for snap with 'Santa'... more info

MTV.co.uk News — ‘Birthday’ battles Ariana Grande’s ‘Problem’ to claim the No.1 spot… more info

TMZ — Katy Perry is surrounded by fakes, frauds and counterfeits ... according to a new lawsuit.Bravado International -- which licenses the exclusive right to hawk T-shirts, hats, posters and other crap from the likes of Michael Jackson, the Red Hot… ... more info