Idolator — Who's that chick throwing a Cirque Du Soleil bachelorette party for Katy Perry? Oh, it's the California girl's BFF, Rihanna. Soon-to-be Mrs. Russell Brand donned a mini, glittery black dress, while the Battleship star wore a tight white dress as the ... more info

Idolator — If the MTV Video Music Awards and Lady Gaga’s winning streak at them left you wanting more, you’re in luck—there’s now the MTV Europe Music Awards to look forward to. Nominations for the 2010 EMAs—which will be broadcast live from at Caja M... more info

The Newsroom — Katy Perry celebrated her upcoming nuptials with celebrity gal pals including Rihanna over the weekend more info

Perez Hilton — Considering everyone was pretty confused by the video for her new single Who's That Chick, Rihanna took to her Twitter to explain the controversy and product placement. She Tweeted: Who's that Chick, is an online music video/commercial that we shot... more info

Perez Hilton — OMG! What outrageous and glorious thing will GaGaloo win this time. The nominees for the The MTV European Music Awards are out and once again, our wifey is dominating! And, once again, she'll be going head to head with the likes of Katy Perry, Eminem... more info

Big Apple Music Scene — • Is Ryan Seacrest ready to make an honest woman of Julianne Hough? (PopEater) • Caroline Manzo will quit Real Housewives of New Jersey if Danielle Staub returns for another season. We call bull. (TMZ) • Sandra Bullock has been partying it up... more info

Perez Hilton — Whoops! A Brazilian concert promoter company, Unique Sports and Marketing, signed a $1.7 million contract with Vegas Style Entertainment to book Rihanna for three upcoming gigs in November. The problem is, is that Vegas Style Entertainment has no con... more info

Perez Hilton — Nothing says party like a huge inflatable penis!! Rihanna and Katy Perry were pAArtying hard at the Hard Rock Hotel and Casino in Las Vegas over the weekend. Spending one of her last night's a single woman, RiRi threw BFF Katy a wild bachelorette par... more info

Idolator — Did You Hear? :: Katy Perry parties with Rihanna in Vegas (and at a Cirque Du Soleil show) for her Bachelorette Party. Hopefully the pop star was able to have a fun ladies night out despite the fact her fiance was arrested the night before. [PopEater... more info

Starpulse — Katy Perry celebrated her last days as a single lady on Saturday with a wild Las Vegas night out featuring strippers and circus performers. The "I Kissed A Girl" hitmaker arrived at the Las Vegas... more info