Katy Perry

Katy Perry’s friends are worried that she’s going to get hurt after reuniting with John Mayer for the third time, and they’re telling RadarOnline.com that she’s already “ignoring red flags.”

Katy Perry and John Mayer’s rollercoaster romance seems to have hit a high point yet again. After they were spotted out to dinner with friends earlier this week, RadarOnline.com can reveal that the couple secretly met up on Thursday for a steamy afternoon hotel hookup!

Katy Perry and John Mayer are dating again after breaking up in 2014. The couple was spotted having dinner and later enjoyed a sleepover.

The celebrities who rest assure that their millions of fans and followers are real may be in for a rude awakening. Yesterday, after achieving 300 million

From the Caribbean to the south of France the world is one massive playground for the rich and famous.

These are the 21 most outrageous celebrity feuds of all time.

There’s nothing like a celebrity feud, but Hollywood stars get just as much attention when they bury the hatchet with their enemies.

Katy Perry's rumored boyfriend, Riff Raff, was snapped over the Labor Day weekend getting wild at Moonlite Bunny Ranch in Carson City, Nev.

These celebrities are not twins separated at birth -- they just look like it! Here’s our list of stars who look so much like each other.

Many divas have appeared on Andy Cohen’s Watch What Happens Live, but one diva’s demands surpassed those of all the other superstar guests.

Katy’s friend DJ Diplo was smacked by Lorde after his jab at Taylor Swift.

Celebs attend Kate Hudson's Halloween Party

Bloomberg TV anchor Stephanie Ruhle and her family run Halloween!

Here are the 23 biggest music feuds of all time!

Neil Patrick Harris’ 15 Top Secrets & Scandals Revealed

Aww! A Katy Perry love letter that she wrote as a child is up for auction!

From Kim Kardashian to Britney Spears, which of these celebs look better with brown hair and which ones are naturally flirty, fun blondes?

Katy Perry is loving the time she's spending with DJ Diplo.

Singer Katy Perry pretty much admitted to bad blood with fellow musician Taylor Swift.

When Katy Perry’s away, Riff Raff will play! The off-color rapper spent a wild weekend at a famous brothel in Nevada with other women.

From the most heartwarming to the most awkward., ere are the best and worst from this year’s MTV VMAs.

Russell Brand hasn't been in the news since he allegedly dumped wife Katy Perry over text message on New Year's Eve in 2011- But now the controversial British

The singer's hair is starting to thin out. Is it stressed related?

The 'Twilight' actor is reportedly smitten with the 29-year-old singer and even hooked up with her at an after-party for his latest film.

The actor is looking to start dating again, but he could get stopped because Ryan Gosling’s girlfriend Eva Mendes is his top target.

The country singer rules the music world, but she’s now eager to be taken seriously in another area of show business, a source told Radar.

The 29-year-old “Birthday” singer sat down with raunchy comedienne and author Chelsea Handler to discuss her high-profile relationships.

Replacing one bad apple for another? Selena Gomez, 21- who dumped troubled ex Justin Bieber, 20, last month after she caught him texting her now-nemesis Kylie

Katy Perry likes to be taken care of while on tour, as revealed in a rider recently leaked online. According to a report from the UK's Daily Star newspaper,

Katy Perry’s rebound romance with DJ Diplo is going strong, but before it gets too serious the “Roar” singer will have to get the seal of approval from the

Katy Perry just can’t pick ‘em. Her marriage to self-proclaimed sex addict Russell Brand ended in bitter divorce, and she moved on to lothario John Mayer, only

Most people take time to regroup after a breakup, but Katy Perry is not most people. After splitting from John Mayer in February, RadarOnline.com has

Some come to the Coachella for the concerts; others, for the parties; and some, for romance. Katy Perry got a taste of all three this weekend when she was

President Obama thinks Kanye West is a “jackass,” and RadarOnline.com has exclusively learned, he’s no fan of the rapper's fiancée either! Though Kim Kardashian

Miley Cyrus has appalled the world with her tongue-wagging twerking ways but now there's a new outrage--she actually spit on fans during a recent concert in

L'Wren Scott and Mick Jagger were together for 13 years, but in the last months before her death, she was forced to watch him cavort onstage -- and off -- with

Russell Brand's Indian-themed marriage to Katy Perry didn't last, but he hasn't let bad karma affect his spiritual affinity for the country. In fact, the

John Mayer's womanizing ways have finally caught up to him. In a new report, Star claims that Katy Perry kicked the  "Who You Love" crooner to the curb --

It hasn’t been the best week for rock star relationships. Days after Robin Thicke announced his marital separation, Billboard power couple Katy Perry and John

As things continue to heat up between John Mayer and Katy Perry, the crooner's ex, Jennifer Aniston, had made peace with their intense love affair

Hear her "Roar." Katy Perry took a loss in ridding herself of the last remnant tying her to ex-husband Russell Brand, Park Hill, the West Hollywood mansion she

It looks like Britney Spears is a hit in Sin City. Her Piece of Me residency show opened Friday night at the Planet Hollywood Resort & Casino to a packed house

Celebrities are known for making outrageous demands backstage at their shows and in their hotel room, and it turns out Katy Perry and John Mayer aren't any

Is that you Beyoncé? Katy Perry was caught in an outrageous lip-synching accident over the weekend and RadarOnline.com has the video of her musical

All hail Queen B! Beyonce's bombshell surprise album has brought her some of her biggest sales ever: According to new sales figures, "Beyonce" sold roughly

The 2014 Grammys promise to be the mother of all awards shows! That's because pop music's three biggest divas — Katy Perry, Beyonce and Lady Gaga — are all

Taylor Swift is country's sweetheart, but according to an eyewitness at the American Music Awards on Sunday night the singer was anything but sweet with the

"I kissed God and I liked it!" Katy Perry's preacher father, Keith Hudson, has made a habit of shouting to his captive audiences.A long-time minister turned

Is Katy Perry about to become Mrs. John Mayer? The Prism singer sported a tiny (by celebrity standards) diamond solitaire ring on her left hand on Sunday