katy perry

Watch Tom Hiddleston Teach Sesame Street's Cookie Monster About Self-Control

Today's best celebrity tweets from Kim Kardashian, Chrissy Teigen, Katy Perry and more.

The best celebrity tweets from Katy Perry, Iggy Azalea, Ariana Grande and more in today's Tweet Repeat.

Celeb gossip and news from September 5th, including Nick Jonas and his girlfriend kissing, Katy Perry's "Roar," and more.

See today's best celebrity tweets from Katy Perry, Ryan Seacreast, Betty White and more in our Tweet Repeat.

The best celebrity tweets from Lady Gaga, Adam Lambert, Demi Lovato, Katy Perry and more.

Clear Haircare celebrity stylist Jen Atkin worked double duty with Katy Perry at the MTV Video Music Awards on Sunday night, creating both her red carpet and

Tweet Repeat: 50 Of the Best Celebrity Tweets From the MTV VMAs

Most memorable MTV Video Music Awards acceptance speeches, VMAs video clips by Drake, Lady Gaga, Katy Perry, Beyonce and More

Just when you think you can't get more excited about the VMAs, MTV invites you to snoop around the Barclays Center.

See what Drew Barrymore, Katy Perry, Taylor Swift and more said today in Tweet Repeat.

Katy Perry teams up with Pepsi to perform Roar live and to close the 2013 MTV Video Music Awards on Sunday August 26 2013.

Katy Perry is breaking some big records for her brand new song "Roar"—and it may be thanks to her boyfriend, John Mayer!

Celeb news and reports from August 14th, including Justin Bieber's lunch plans, Britney Spears' budget, and more.

Vote for best new pop music release August 12 from Katy Perry John Mayer, Jesse McCartney, Ellie Goulding, Naya Rivera Big Sean Sorry song.

Katy Perry talks about her duet with John Mayer on "Who You Love" and her pal Lady Gaga on SiriusXM Hits 1.

Celebrity news and reports from August 13th, including Taylor Swift and Ed Sheeran, Michael McMillian, and more.

Find out what celebs like Katy Perry, The Wanted, Miley Cyrus and Alicia Keys were up to in our Tweet Repeat.

Katy Perry will perform her brand-new single, "Roar," at the VMAs on August 25 in Brooklyn.

Celebrity news and reports from August 9th, including Jennifer Love Hewitt working out, Liam Payne shirtless, and more.

See the best celebrity tweets of the day from Katy Perry, Naya Rivera, Lena Dunham and more in our Tweet Repeat.

Vote in poll for best pop song of the week of July 30 from Backstreet Boys, Emblem3, Katy Perry, Avicii, Robin Thicke and new album releases.

See what stars like Heidi Klum, Adam Lambert and Zoe Saldana were buzzing about in our Tweet Repeat!

Katy Perry loves a good theme and she fully embraced the blue hue her character Smurfette loves so much yesterday at the Los Angeles premiere of her movie, 'Smurfs 2'.

Selena Gomez has possibly trumped all previous breakup songs by including a voicemail from Justin Bieber on "Love Will Remember."

Katy Perry rocked a red, white, and blue outfit during her concert on the 4th of July.

To celebrate Fourth of July tomorrow, we thought it was only fitting to jam out to Katy Perry's Firework all day. With this in mind, we couldn't not dedicate our Gotta See it GIF of the Day the popstar's tune. Check out the amazing GIF from Katy's music video below and of course, have a very happy Fourth of July!

Yesterday, literally, we reported that John Mayer and Katy Perry were figuring things out and probably getting back together. And then last night, literally,

Could the John Mayer and Katy Perry fling be a flickering flame? There hasn't even been a duet yet! Katy Perry has already been rumored to be possibly linked to

It's the weekend! Time to relax with a whole bunch of time in front of a screen—so no, not very different from your usual weekday, actually. Here's what's new

Katy Perry still has quite a lot to get off her chest about Russell Brand and their 14-month marriage. “He’s a very smart man, and I was in love with him

Katy Perry debuted her new digital short for popchips today! The cute video follows Katy & the popkats on their journey to stop the evil Fat Cat from

Now that Robert Pattinson is no longer linked to long-term Twilight girlfriend K-Stew, the celeb could technically be (as far as we know) single! He's a total

Who doesn't love a good selfie picture? The best part is that celebrities do too! While browsing Instagram we couldn't help but notice more selfies than usual

They say that once a couple breaks up it's probably a sign that they're not meant to be together in the long run. Well, it's really just my mom who said that.

Rise and shine, pop culture fans! Rub your eyes, get to stretchin', and pour yourself a hot cup of coffee because it's time to start your day off right with a

Katy Perry has a bit of a rocky relationship with her parents, but if there's one thing her mom is grateful for, it's the fact that she divorced Russell Brand.

Kristen Stewart recently got into a small fender bender while visiting a friend in Los Angeles. An eyewitness revealed that Kristen stayed at the scene of the

Coachella may be over, but that didn't stop Katy Perry from channeling her inner hippie in a lavender flower crown and flower earrings at the Pre-MET The Great

Holy talons! Katy Perry rocked one serious mani to the sneak preview of her new fragrance the other night at the James B Duke Mansion in New York City. Celeb

Rise and shine, pop culture fans! Rub your eyes, get to stretchin', and pour yourself a hot cup of coffee because it's time to start your day off right with a

Katy Perry has money and fame now—but in a new interview she talks about the days when she didn't. And they weren't that long ago. The Grammy nominated singer

With all the buzz about season three of The X Factor, Demi Lovato is asking the same question as viewers—who is replacing Britney Spears and L.A. Reid? The

Prada’s Great Gatsby cocktail party was a star-studded affair as celebrities like Maggie Gyllenhaal, Florence Welch and Carey Mulligan admired the amazing

It's safe to say that Rihanna and Katy Perry are back on friendly terms after spending some time apart lately! It was being reported that the two were duking it

As we're trying to get fitter as part of OK!'s 12 Week Countdown To Summer, it may be challenging sometimes to find a healthy snack when we've got the

Good news Katy Perry fans! The "Firework" singer recently announced at the ASCAP I Create Music Expo that she's in the studio working on her third album. Katy

Not many ten year olds can say that they've interviewed Katy Perry, become best friends with Ellen Degeneres and traveled the world, but then there's Sophia

So, have you heard about this thing called Coachella? Where 92 percent of Hollywood leaves their real lives behind for two weekends and heads to a free-spirited

Oh Katy Perry, how I live for you in this Thakoon dandelion dress. The singer attended Coach's 3rd Annual Evening of Cocktails and Shopping to Benefit the