katy perry

Now that Katy Perry and John Mayer are back on again, the 'Fireworks' songstress is laying down some ground rules for the 'Paper Doll' singer-songwriter. If he wants to date Perry again, he's got to follow some dang guidelines!

What the what?! Even though R. Patz and Katy Perry are trying to act like they aren't a couple, more information has surfaced indicating that they totally are.

Katy Perry is Vogue's July cover model, and as part of discussing what she does and doesn't like about herself, the 'Fireworks' singer was caught on video getting her makeup done -- partially by herself, but largely by a professional team.

Singer Katy Perry is friends with Kristen Stewart and Robert Pattinson, but when the collective Robsten broke up, Perry started spending a lot of time with Pattinson -- so much so that lots of people are wondering if they're hooking up. And Stewart is none too pleased.

Katy Perry has nabbed the mother of all magazine covers, fronting the July 2013 issue of the U.S. edition of Vogue. Nice job, Katy Kat.

We already know Miley Cyrus is No. 1 on Maxim's Hot 100 list, since she blew up their spot over the weekend and revealed the big news before they did!

It sounds as though Katy Perry needs a friend's shoulder to lean on after her breakup with John Mayer. But not any friend's shoulder will do, some sources are saying she's been finding comfort in her ex-husband Russell Brand.

Katy Perry stepped out on Valentine's Day with a gift from her boyfriend John Mayer: a heart-shaped ruby ring that she wore on her left ring finger to make the paparazzi explode. TROLOLOLOLOLO. Now rumors are flying that the couple plans to wed, despite their reps neither confirming or denying an engagement.

Cute couple alert! John Mayer joined his lovely lady friend, Katy Perry, to see President Obama be sworn in for his second term.

Katy Perry, Usher and the cast of 'Glee' were on hand to celebrate the inauguration of President Barack Obama for his second term. The festivities began the Kids Inaugural Concert, emceed by Nick Cannon and graced by the First Family and Vice President Joe Biden and Co. as well.

Ho ho ho! John Mayer is so much more than a cad with a big mouth when it comes to relationships. The singer-songwriter and guitarist is also a great role player. His GF Katy Perry tweeted a picture of him in a Santa Claus costume -- giving off a sly grin in place of the furry white beard -- on Christmas.

Two-time Grammy winner LL Cool J joined six-time winner Taylor Swift to announce the 2013 Grammy nominations on Wednesday, Dec. 5, and the words no one said were "wow, really?" because it was basically a lineup of the usual suspects.