411 Mania — Happy birthday baby… more info

Big Apple Music Scene — What makes Katy Perry original? It's not her outrageous awards-show outfits (Nicki Minaj is neck-and-neck with her) but her many bizarre, cute Twitpics she posts for her fans. So in honor of her birthday, here are Katy's best shots. More » Post from... more info

ContactMusic — Katy Perry was serenaded by 14000 fans during a show in Belfast Northern Ireland on Monday 24Oct11 as they sang Happy Birthday to the star The I Kissed a Girl hitmaker turns 27 on Tuesday 25Oct11 and she took to the stage at the citys Odyssey Aren... more info

Pop Justice — » It's been at least a week since Beyonce premiered a new video, but fear not, here's a preview of the forthcoming 'Party' promo. (AceShowbiz) (http://www.aceshowbiz.com/news/view/00044742.html) » Nicki Minaj's first range of nail polish will go ... more info

Starpulse — Happy Birthday to: Pop Superstar Katy Perry (1984) R&B Singer Ciara (1985) Actor Mehcad Brooks (1980) Actor Adam Pascal (1970) Actor Adam Goldberg (1970) Red Hot Chili Peppers drummer Chad Sm... more info

Starpulse — Halloween is the perfect occasion to embrace a celebrity persona so which costumes will be the big hit this year? Using HighBeam Research, the media mentions of each “celebrity name” + “costume... more info

Starpulse — Katy Perry and Russell Brand celebrated their one year wedding anniversary on Sunday. On Saturday, the couple enjoyed a romantic bike ride through New York City. more info

Guardian Music — Tell us which lines make you cringe the mostEarlier today we asked you, via the @guardianmusic Twitter feed, to suggest songs with notably bad lyrics. Here's a few of the responses we received: @JLucas86"baby baby baby baby baby, baby baby baby baby ... more info

411 Mania — Katy Perry, Rihanna, Lady Gaga, and Gwen Stefani all inspired by Marilyn..... more info

White Folks Get Crunk — Why is this dope? Forget About Dre is a crowd favorite that doesn’t get played much (at least by me). Also the hype on the intro from California Love is a nice touch. Much better than anything with Fatman Scoop or Lil Jon. Something different. Appa... more info