Pop Crunch — Katy Perry recently filmed a guest appearance on the CBS hitcom How I Met Your Mother and the first promotional images from the crooner’s appearance have surfaced online. (Don’t worry, she’s wearing makeup!) The half-hour episode, which airs Fe... more info

Perez Hilton — Good thing Blackberrys and iPhones and Palm Pilots have calendars! While on Ryan Seacrest's radio show, Katy Perry revealed that she plans dates with hubby Russell Brand as much as eight months in advance! Here's what she had to say about it: "It's ... more info

Perez Hilton — As to be seen at concession stands during Katy Perry's upcoming tour! Pretty rad! The latest craze to hit the sugary world is Glo-Cone! The company specializes in bringing your favorite treats to life, like these color changing cotton candy cones! In... more info

The Newsroom — Katy Perry puts in that extra effort when it comes to keeping her love life alive more info

Perez Hilton — There is some SERIOUS talent working on this one, and we doubt that they're going to disappoint! Ester Dean, the Grammy-nominated songwriter best known for penning Katy Perry's Firework, Rihanna's What's My Name, and Usher' Hottie Tottie, recently re... more info

MTV.co.uk News — Cheryl Cole's dreams of being a judge on the US version of The X Factor could be in crisis, with reports suggesting that producers of the show are doubting her ability to "pull in... more info

Gigwise — Producers doubting her potential... more info

ContactMusic — Actress GRETA GERWIG has pedalled off with a top-of-the-range bicycle which her ARTHUR co-star RUSSELL BRAND bought as a gift for his new bride KATY PERRY.Brand offered the bike to his actress pal after Perry turned it down last year (10). And Gerwig... more info

ContactMusic — Katy Perry keeps fit by skipping.The 26-year-old singer enjoys five 25-minute workouts every week with personal trainer Harley Pasternak, who says her brief workouts are better for keeping her trim in the long term.Harley said "It's an intense workou... more info

ContactMusic — Designer Carlotta Gherzi would love to dress Katy Perry. The Sado founder's label is loved by celebrities such as Chloe Sevigny, Cheryl Cole and actress-and-fashion designer Sienna Miller but Carlotta thinks her clothes would look best on the 'Firewo... more info