Topix — Singer Katy Perry arrives at the Gridlock New Year's Eve party at Paramount Studios in Los Angeles on Dec. more info

Rolling Stone — Photo: Curry/AFP/Getty Hopefully you’ll be more excited than poor Amy here to see the week’s wildest photos. Inside this week’s gallery, Lada Gaga hunts and kills a gaggle of Muppets, Kevin and Joe Jonas get ready to climb on your kitchen table... more info

Starpulse — Pop singer Katy Perry rocked the stage at the "Today" show this morning in a red "dice dress." Check out pictures and videos below...[...] Read more! more info

The Daily Mail — The I Kissed A Girl singer wore an eye-catching dress covered in dice for a live TV concert this morning. more info

AngryApe — The hitmaker reveals her work-out regime more info

Starpulse — Pop singer Katy Perry skips backstage before concerts to test her outrageous costumes against "wardrobe malfunctions."[...] Read more! more info

NME — Jay-Z and Rihanna hit London, Katy Perry goes for 'Rocky' look, Duffy gets richer – your music gossip stop more info

MTV.com News — The 'Hills' star and aspiring singer is set to perform at the competition, which airs August 23 on NBC.By Jocelyn Vena Heidi Montag Photo: Jason Merritt/Getty Images On August 23, "Hills" star and aspiring pop singer, Heidi Montag, will be... more info

AngryApe — Fashion designer 'Katie Perry' is thrilled more info

MTV.com News — 'The music's gonna be great,' the 'American Idol' runner-up promises. 'Just wait a couple months.'By Katie Byrne, with reporting by Jim Cantiello Adam Lambert and Jim Cantiello Photo: MTV News Adam Lambert wasn't too excited when his unoff... more info