Katy Perry

See what Demi Lovato, Eric Stonestreet, Chrissy Teigen and more of your favorite stars were chatting about in today's Tweet Repeat.

Harry Potter star Daniel Radcliffe is reportedly playing an Olympic Runner, Sebastian Coe, in an upcoming movie.

Celeb gossip from October 29th, including one of Hailee Steinfeld's best dressed moments, where she wears a cute one-shoulder gown.

Katy Perry, the reported girlfriend of John Mayer, turns 29 today. Exercise to her greatest hits with this upbeat workout playlist.

Celebrity gossip, including actor Joseph Gordon Levitt and Scarlett Johansson partnership in a new project featuring Scarlett's voice

Pop singer Katy Perry rocked a cute outfit at the iHeartRadio Prism Album Release Party, including a Diane von Furstenberg H.Stern Ring.

Is John Mayer Planning A Proposal To Katy Perry? Find Out When He Is Said To Pop the Question!

Celeb gossip from October 23, including Harper Beckham playing soccer with her dad David Beckham and Katy Perry's celebrity hair collection.

Live stream video on Yahoo of Katy Perry iHeartRadio album release party at Los Angeles theater of performance of songs off new album Prism.

New music, new singles pop songs poll like Demi Lovato Let It Go, Lupe Fiasco Ed Sheeran, Justin Bieber Tyga and Katy Perry Unconditionally.

Celeb gossip from October 17th, including news about Matthew McConaughey's weight loss, Katy Perry's third album release party, and more.

See what Katy Perry, John Mayer, Chrissy Teigen and more of your favorite stars were chatting about on Twitter in today's Tweet Repeat.

Katy Perry To Rock the 2013 MTV EMAs Alongside Anchorman's Ron Burgundy!

Full list of nominations for the 40th anniversary 2013 American Music Awards, AMA nominated artists like Katy Perry, Justin Bieber, Rihanna.

See what Bethenny Frankel, Teresa Giudice, Jimmy Fallon and more were chatting about on Twitter in today's Tweet Repeat.

See Rita Ora's new grill in today's Gotta See It Gram of the Day.

Vote in poll for best new pop song single music release video like Katy Perry Walking on Air, Christina Aguilera Catching Fire,

See what Rashida Jones, Lena Dunham, Jimmy Fallon and more were chatting about on Twitter in today's Tweet Repeat.

Can you guess which superstar this kitty belongs to? Take a guess with our clues in today's Afternoon "Aww".

Welcome to Tweet Repeat, your daily dose of the best celeb anecdotes found on Twitter. We’ve scoured the site looking for the funniest, weirdest, goofiest,

Listen to first hits from Katy Perry, Justin Timberlake, Drake and more iHeartRadio music festival artists in our OK! Old School playlist.

See what Katy Perry, Macklemore, Solange Knowles and more were chatting about on Twitter in today's Tweet Repeat.

Vote in poll for best new music, single and pop video September 16 like Katy Perry Dark Horse, Naya Rivera Sorry, Glee's Beatles and Daughtry.

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!